# Flex Log vs Felt

The clearest difference is in-app purchases: Flex Log at none against Felt's 7. Flex Log also leads on iOS requirement (12.4 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Felt sells 7 in-app purchases, starting at $4.99 per 7 days. Flex Log asks for nothing beyond the download.

Flex Log ships an update every 5 days, Felt every 4 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Flex Log | Felt |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 18 MB | 21 MB |
| Requires iOS | **12.4** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Aaron Larner](https://appshunter.io/developer/950120608) | [Amirmahdi Fathi](https://appshunter.io/developer/1638616778) |

## What reviewers say

### Flex Log

[App page](https://appshunter.io/ios/app/flex-log/id6476252928)

**Features:** macOS Compatibility

**In-app purchases:** none


### Felt

[App page](https://appshunter.io/ios/app/felt-mood-tracker-and-journal/id6765470187)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Felt Pro Weekly | $4.99 | per 7 days |
| Felt Pro Monthly | $9.99 | per month |
| Felt Pro Annual | $19.99 | per year |
| Felt Pro Annual | $39.99 | per year |
| Felt Pro Annual | $39.99 | per year |
| Felt Pro Annual | $39.99 | per year |
| Felt Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Flex Log free?

Flex Log is free to download, with no in-app purchases.

### Is Felt free?

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

### Do Flex Log or Felt have ads?

Neither Flex Log nor Felt shows ads.

### Which is updated more often, Flex Log or Felt?

Flex Log ships an update every 5 days, and Felt every 4 days. Most recently, Flex Log was updated on September 15, 2026 and Felt on September 20, 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.*