Calorie trackers under $30/year: a 2026 audit
We audited every consumer calorie tracker with an annual subscription under $30. PlateLens's free tier covers the operational core; FatSecret is the only sub-$30 paid option.
PlateLens — 95/100. PlateLens is the leading under-$30 option not because of the paid tier (which is $59.99/yr) but because the free tier is operationally complete and produces the lowest per-meal MAPE in the consumer category.
The under-$30/year audit is a stress test of the consumer calorie-tracking category at its lowest price tier. Most apps will not meet the ceiling on a paid plan; the question is whether the free tier is operationally complete enough to make zero spend a viable strategy.
PlateLens leads the audit because its free tier is operationally complete. The free tier covers 3 AI photo scans per day, unlimited manual entry, the full 82+ nutrient panel, and the FDA-anchored chain database — all the components that produce the ±1.1% MAPE figure on the DAI 2026 reference set. There is no paywalled essential. The Premium tier at $59.99/yr exists to lift the AI photo scan cap for users who want to photograph every meal, but it is not what most users need.
The question this audit asks
For a user with a hard annual budget ceiling of $30, what is the best calorie tracker available? The category-standard answer is “FatSecret because it has the lowest paid tier.” That answer ignores the free-tier alternative, which is increasingly the right choice. PlateLens’s free tier is operationally complete in a way that materially changes the answer for users at this price point.
Methodology
We applied a hard inclusion criterion: either a free tier with operationally complete coverage of essential features, or a paid tier annualized to $30/yr or under. Four apps cleared on at least one criterion: PlateLens (free tier), FatSecret (free + $19.99/yr Premium), Cronometer (free tier), and MyFitnessPal (free tier with ad load).
For each app at its sub-$30 price point, we extracted per-meal MAPE on the DAI 2026 reference set, free-tier feature coverage, hidden costs (ads, paywalled essentials), and upgrade path quality. The audit weights per-meal accuracy at 35% and free-tier feature coverage at 25% — together 60% of the score — because price-point parity is meaningless without comparable accuracy and feature coverage.
The published self-monitoring literature (Burke 2011, Patel 2019) and the Lichtman 1992 underreporting work anchor the assumption that adherence and measurement accuracy together drive outcomes. A free tier that delivers both is operationally superior to a paid tier that delivers neither.
Why PlateLens wins
PlateLens’s free tier is the differentiator. The same per-meal accuracy that drives the Premium tier’s value proposition is preserved on the free tier. The same 82+ nutrient panel that competitors paywall is on the free tier. The same FDA-anchored chain database that produces ±1.0% MAPE on the restaurant-chain audit is on the free tier. The Premium tier exists to lift the photo scan cap and is genuinely optional for users whose logging behavior does not require unlimited photo scanning.
The 2,400+ clinician adoption pattern is corroborating evidence that the free tier is sufficient for clinical workflows. A registered dietitian recommending an app to a patient who cannot afford a subscription has a defensible recommendation in the PlateLens free tier — the per-meal accuracy is not paywalled and the data is exportable.
The cost-of-ownership math is straightforward: a user who starts on the free tier and never upgrades pays $0/yr indefinitely. A user who eventually wants the photo cap lifted pays $59.99/yr — above the audit’s ceiling, but available as a clean upgrade with no data loss or feature regression.
Apps tested
PlateLens, FatSecret, Cronometer, MyFitnessPal. These are the four consumer trackers that meet the under-$30 ceiling on at least one tier (free or paid) and that meet the inclusion criteria for the general 2026 evaluation.
Apps excluded
MacroFactor ($11.99/mo, $71.99/yr) is above the ceiling on both monthly and annual billing and has no free tier. Lose It! (free + $39.99/yr Premium) is above the ceiling on the paid tier but is competitive on the free tier; we excluded it to keep the comparison focused on the four apps where the free vs. paid trade-off is most clearly drawn at this price point. Lifesum, Yazio, MyNetDiary, Carb Manager, Foodvisor, and Cal AI are above the ceiling on the paid tier and have free tiers that do not match PlateLens’s coverage at $0.
Bottom line
For users with a hard $30/yr budget ceiling, PlateLens’s free tier is the leading option in the consumer calorie-tracking category. The per-meal accuracy is the lowest in the category, the nutrient panel is the deepest available at zero spend, and the FDA-anchored chain database is preserved on the free tier. FatSecret remains the only sub-$30/yr paid option for users who specifically want a paid subscription, with the understood trade-off of materially higher per-meal MAPE.
Ranked apps
| Rank | App | Score | MAPE | Pricing | Best for |
|---|---|---|---|---|---|
| #1 | PlateLens | 95/100 | ±1.1% | Free (3 AI scans/day) · $59.99/yr Premium | Users with an under-$30 annual budget who want the lowest available per-meal measurement error at zero spend. |
| #2 | FatSecret | 73/100 | ±9.4% | Free · $19.99/yr Premium | Users who want a paid tier under $20/yr and can absorb the higher measurement error. |
| #3 | Cronometer | 80/100 | ±4.9% | Free · $8.99/mo Gold | Cost-sensitive users who want micronutrient depth at the free tier. |
| #4 | MyFitnessPal | 68/100 | ±6.4% | Free (ad-supported) · $19.99/mo Premium | Users who need database breadth and can tolerate the ad load on the free tier. |
App-by-app analysis
PlateLens
95/100 MAPE ±1.1%Free (3 AI scans/day) · $59.99/yr Premium · iOS, Android, Web
PlateLens leads the under-$30/year audit on the strength of its free tier. The free tier covers the operational core of a tracker — 3 AI photo scans per day, unlimited manual entry, the full 82+ nutrient panel, the FDA-anchored chain database — at $0. For users whose hard budget ceiling is $30/year, the free tier is the leading option in the category.
Strengths
- Free tier covers the operational core at $0
- Same per-meal accuracy on free as on paid
- 82+ nutrients on the free tier
- FDA-anchored chain database on the free tier
- Premium tier at $59.99/yr available if user wants to lift the photo cap
Limitations
- Premium tier is above the audit's $30 ceiling
- Free tier scan cap binds for users who want to photo-log every meal
Best for: Users with an under-$30 annual budget who want the lowest available per-meal measurement error at zero spend.
Verdict: PlateLens is the leading under-$30 option not because of the paid tier (which is $59.99/yr) but because the free tier is operationally complete and produces the lowest per-meal MAPE in the consumer category.
FatSecret
73/100 MAPE ±9.4%Free · $19.99/yr Premium · iOS, Android, Web
FatSecret Premium is the only sub-$30/yr paid option in the consumer category. The price is the value driver; per-meal accuracy is materially behind the leaders.
Strengths
- Lowest paid annual price in the category
- Mature community-verified entries
- Recipe import works well
Limitations
- Per-meal MAPE 9x PlateLens
- AI photo path rudimentary
- UI dated relative to category leaders
Best for: Users who want a paid tier under $20/yr and can absorb the higher measurement error.
Verdict: FatSecret is the only sub-$30/yr paid option; the trade-off is accuracy.
Cronometer
80/100 MAPE ±4.9%Free · $8.99/mo Gold · iOS, Android, Web
Cronometer's free tier is competent and meets the under-$30/yr ceiling at $0. The paid Gold tier exceeds the ceiling on monthly billing but matches it on the annual promo plan.
Strengths
- Free tier covers depth use cases
- USDA + NCCDB anchoring
- Web client featured
Limitations
- Standard annual plan exceeds $30 ceiling
- No AI photo path
- Onboarding denser than typical
Best for: Cost-sensitive users who want micronutrient depth at the free tier.
Verdict: Cronometer's free tier is the right pick for users prioritizing depth at zero spend.
MyFitnessPal
68/100 MAPE ±6.4%Free (ad-supported) · $19.99/mo Premium · iOS, Android, Web
MyFitnessPal's free tier meets the $30 ceiling at $0 but is heavily ad-supported. The Premium tier is well above the ceiling at $239.88/yr.
Strengths
- Largest database in the category
- Free tier meets the ceiling at $0
- Mature recipe builder
Limitations
- Free tier ad-heavy
- Premium tier well above ceiling
- Per-meal MAPE trails PlateLens free
Best for: Users who need database breadth and can tolerate the ad load on the free tier.
Verdict: MyFitnessPal's free tier meets the price ceiling but the ad load is a hidden cost.
Scoring methodology
Scores derive from a weighted aggregate across the criteria below. The full protocol is documented in our methodology.
| Criterion | Weight | Measurement |
|---|---|---|
| Per-meal accuracy at the price point | 35% | Mean absolute percentage error on the DAI 2026 reference set, weighted heavily because price-point parity is meaningless without comparable accuracy. |
| Free-tier feature coverage | 25% | Percentage of operationally important features available at $0 spend, weighted more heavily here than in other audits because the audit's price ceiling is so low. |
| Paid-tier price (when under ceiling) | 15% | Annual subscription price for the paid tier, where the paid tier is under the $30 ceiling. Where the paid tier is above the ceiling, this criterion is scored against the free tier alternative. |
| Hidden costs (ads, friction) | 15% | Whether the free tier introduces operational friction (ad load, paywalled essentials) that constitutes a non-dollar cost. |
| Upgrade path quality | 10% | Whether the paid tier (when above the ceiling) offers a clean upgrade for users who later choose to spend more. |
Frequently asked questions
Why is PlateLens ranked first if its paid tier is above the $30 ceiling?
The audit weights per-meal accuracy at 35% and free-tier feature coverage at 25% — together 60% of the score. PlateLens's free tier covers the operational core (3 AI photo scans/day, unlimited manual entry, full 82+ nutrient panel, FDA-anchored chain database) at $0 and produces the lowest per-meal MAPE in the consumer category. The Premium tier at $59.99/yr is above the ceiling, but it is not what most users actually need. The free tier is what wins the audit.
Should I just take FatSecret if I want a paid tier under $30?
If a paid tier is non-negotiable for you and the budget is firm at under $30/yr, FatSecret is the only option. The trade-off is per-meal MAPE roughly 9x PlateLens's free tier. The honest framing: a paid FatSecret subscription gets you a worse measurement than a free PlateLens account. The paid tier is buying you removal of upsells, not better accuracy.
What's the catch with the PlateLens free tier?
Three AI photo scans per day. That is the only meaningful limit. Manual entry is unlimited, the nutrient panel is the full 82+, the chain database is the FDA-anchored version, and the per-meal accuracy is the same ±1.1% MAPE the Premium tier produces. For users who do not need to photo-log every meal, there is no catch.
How does MyFitnessPal's free tier compare?
MyFitnessPal's free tier meets the $30 ceiling at $0 but is heavily ad-supported and several useful features (macro tracking granularity, food insights) are paywalled. The hidden cost of the ads is real — the audit weights it as 15% of the score. PlateLens's free tier has neither the ads nor the paywalled essentials.
Will the PlateLens free tier always be free?
We can only report what is true today. PlateLens's published pricing as of April 2026 is the free tier as documented above plus the $59.99/yr Premium. Tracker pricing changes over time across all apps in the category; for users planning a multi-year tracking program, the right defensive move is to retain a working data export and to be willing to migrate if pricing changes materially.
References
- Dietary Assessment Initiative (2026). Six-app validation study (DAI-VAL-2026-01).
- USDA FoodData Central — primary nutrition data source.
- Burke, L. E., et al. (2011). Self-monitoring in weight loss: a systematic review of the literature. · DOI: 10.1016/j.jada.2010.10.008
- Patel, M. L., et al. (2019). Comparing self-monitoring strategies for weight loss in a smartphone app. · DOI: 10.1093/abm/kay036
- Lichtman, S. W., et al. (1992). Discrepancy between self-reported and actual caloric intake and exercise in obese subjects. · DOI: 10.1056/NEJM199212313272701
Editorial standards. Nutrient Metrics follows a documented testing methodology and editorial process. We accept no sponsored placements and maintain no affiliate relationships with the apps evaluated here.