Comparison

AI Diet & Workout Trainer vs SmileProgress

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI Diet & Workout Trainer

Features
Read full description

AI Diet Coach is your personal AI trainer for diet and exercise—guiding you all the way to your weight-loss goals. ■ Your own AI trainer Choose a trainer with a personality that fits you. Chat anytime about food and workouts, and your trainer greets you on Home every day. ■ See what to do today, at a glance Today's plan is laid out on Home, and you can log each item right from its row. No overthinking—just start with what you can do. ■ Meal & workout plans, made for you Get realistic diet and exercise plans matched to your goals and preferences. Not a fan of exercise? We won't push hard workouts on you. ■ Log with one button Tap "Record" and choose "Ate as planned", "Photo", or "Type it". You can also just tell your trainer "had pasta for lunch" in chat. Weight and steps sync automatically from Apple Health. ■ Watch your progress grow At every milestone, your AI writes a "progress report" reflecting on your effort—remembering your long-term journey to coach you better. Free to start. Richer support is available with a paid plan. * This app supports diet and exercise improvement and does not provide medical advice or diagnosis. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SmileProgress

Features
Read full description

SmileProgress lets you record and organize photos of your orthodontic journey entirely on your device. Capture, align, anonymize, and compare in one flow — and share anonymously only when you choose to. It is an app for keeping your own record, at your own pace. Main features - Record from the same angle: organize open / closed × front / right / left photos by date - Auto-align: detects the mouth area and matches level, center, and size so Before / After are easy to compare - Easy comparison: pick first vs. latest, 1 month ago, or 3 months ago, and view with a slider, side by side, or time-lapse - Anonymization preview: check the shared image beforehand; EXIF and location data are removed - Sharing you control: sharing always goes through an explicit action and a confirmation screen, so nothing is ever posted automatically - Delete anytime: you can take down a shared post whenever you want Privacy - Original photos are kept only on your device and are never sent to our servers - Only anonymized, adjusted images are used when you share - Whether to share is entirely your choice SmileProgress is not a medical device and is not intended for diagnosis or treatment. It is an app for recording and looking back. Pricing - Browsing posts and sharing anonymously are free - Recording photos is free for 90 days from the day you add your first photo - After that, viewing, comparing, exporting, backing up and sharing what you have already recorded stays free - The one-time purchase is needed only to keep adding new photos Features unlocked by the one-time purchase stay available for good. We plan to add a Pro plan (extra features) in the future, but we will never move one-time features behind a paid plan. Early buyers will receive a benefit when Pro launches.

Screenshots

AI Diet & Workout Trainer4 screens
SmileProgress4 screens

Verdict

The call

The clearest difference is in-app purchases: AI Diet & Workout Trainer at none against SmileProgress's 1. AI Diet & Workout Trainer also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (15.0 vs 17.6). SmileProgress's advantage is ads (none vs shown). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SmileProgress sells 1 one-off in-app purchase. AI Diet & Workout Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

AI Diet & Workout Trainer ships an update every 4 days, SmileProgress every 3 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
AI Diet & Workout Trainer versus SmileProgress: the parameters behind the verdict, then further details
ParameterAI Diet & Workout TrainerSmileProgress
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size52 MB37 MB
Age rating4+4+
Developer0x48labNaoki MORI

In-app purchases

None

AI Diet & Workout Trainer

No in-app purchases

1 purchases

SmileProgress

One-time1
  • Keep Recording (one-time)$0.99

Questions

Is AI Diet & Workout Trainer free?
AI Diet & Workout Trainer is free to download, with no in-app purchases.
Is SmileProgress free?
SmileProgress is free to download, with in-app purchases available.
Do AI Diet & Workout Trainer or SmileProgress have ads?
AI Diet & Workout Trainer shows ads; SmileProgress does not.
Which is updated more often, AI Diet & Workout Trainer or SmileProgress?
AI Diet & Workout Trainer ships an update every 4 days, and SmileProgress every 3 weeks. Most recently, AI Diet & Workout Trainer was updated on October 31, 2026 and SmileProgress on October 25, 2026.

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