# Calog vs FastOn

The clearest difference is ads: Calog at none against FastOn's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Calog sells 14 in-app purchases, starting at $9.99 per month and FastOn sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Calog ships an update every 4 days, FastOn every 3 days. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Calog | FastOn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (41 ratings)](https://appshunter.io/ios/app/calog-calorie-macro-tracker/id6755748205/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 141 MB | 30 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gymwork Inc.](https://appshunter.io/developer/1498721516) | [Masahiro Akebi](https://appshunter.io/developer/1884865177) |

## What reviewers say

### Calog

[App page](https://appshunter.io/ios/app/calog-calorie-macro-tracker/id6755748205)

This app uses AI-powered food scanning and science-backed nutrition principles to help you log meals quickly, track calories and macros accurately, and build healthy habits. It offers personalized guidance and adapts to your goals for effective weight management or muscle gain.

**Highlights:** AI food scanning with photo logging, Barcode and label scanner, Natural language manual meal logging, Detailed calorie and macro breakdowns, Personalized macro plan and guidance, Weight trend visualization, Flexible timeline meal logging

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calog PRO | $9.99 | per month |
| Eligible Only  Calog PRO | $19.99 | per year |
| Eligible Only  Calog PRO | $29.99 | per year |
| Calog PRO | $29.99 | per 3 months |
| Eligible Only  Calog PRO | $33.99 | per year |
| Eligible Only  Calog PRO | $39.00 | per year |
| Eligible Only  Calog PRO | $39.99 | per year |
| Calog PRO | $39.99 | per year |
| Eligible Only  Calog PRO | $49.99 | per year |
| Calog PRO | $59.99 | per year |
| Calog PRO | $69.99 | per year |
| Calog PRO | $78.00 | per year |
| Calog PRO | $79.99 | per year |
| Calog PRO | $99.99 | per year |


### FastOn

[App page](https://appshunter.io/ios/app/faston/id6778654479)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Yearly) | $17.99 | per year |
| Premium (Lifetime) | $22.99 | one-time |


## Frequently asked questions

### Is Calog free?

Calog is free to download, with in-app purchases available.

### Is FastOn free?

FastOn is free to download, with in-app purchases available.

### Do Calog or FastOn have ads?

FastOn shows ads; Calog does not.

### Which is updated more often, Calog or FastOn?

Calog ships an update every 4 days, and FastOn every 3 days. Most recently, Calog was updated on September 23, 2026 and FastOn on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*