Ignia vs Cal AI — honest comparison
Honest, side-by-side comparison of Ignia and Cal AI. Where each one wins, where it loses, and which to pick for which job.
The viral photo tracker that made one feature famous — now owned by MyFitnessPal.
When the other tool is the right pick
Cal AI made photo-based logging mainstream and its recognition is still the best in the category — that is the one thing it set out to do and it did it well enough to reach 15 million downloads in under two years. MyFitnessPal acquired it in December 2025, and it now runs against MFP's 20-million-food database. If photo-only logging is the whole of what you want, it is a good app. Ignia ships photo scanning too, free, but treats it as one way in among several rather than the entire product.
Feature-by-feature: Ignia vs Cal AI
| Feature | Ignia | Cal AI |
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| Price | Free. | Limited free scans, then subscription. |
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| Photo macro recognition | Gemini-backed, free, 3 scans a day. | Best in class — the single feature they specialised in. |
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| Offline logging | Full — cached day, durable write queue. | Photo recognition runs server-side, so it needs a connection. |
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| Adaptive TDEE | Maintenance measured from your 14-day trend. | Static targets. |
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| Strength training | Templates, sets, RIR, auto-progression. | Not offered. |
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| Independence | Independent, free, no ads, no data sold. | Owned by MyFitnessPal since December 2025. |
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