# Simple Protein Log vs Ring Protein

The clearest difference is ads: Ring Protein at none against Simple Protein Log's shown. Simple Protein Log's advantage is iOS requirement (13.0 vs 17.5). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Simple Protein Log sells 3 in-app purchases, starting at $0.99 per month and Ring Protein sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Simple Protein Log ships an update every 2 weeks, Ring Protein every 9 days. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Simple Protein Log | Ring Protein |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 52 MB | 7 MB |
| Requires iOS | **13.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [NAOYA ONO](https://appshunter.io/developer/1530328146) | [TAKUMA YANO](https://appshunter.io/developer/1869479039) |

## What reviewers say

### Simple Protein Log

[App page](https://appshunter.io/ios/app/simple-protein-log/id1669670482)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $0.99 | per month |
| Support Developer | $0.99 | one-time |
| Remove ads | $9.99 | one-time |


### Ring Protein

[App page](https://appshunter.io/ios/app/ring-protein/id6757891962)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro機能をアンロック | $2.99 | one-time |


## Frequently asked questions

### Is Simple Protein Log free?

Simple Protein Log is free to download, with in-app purchases available.

### Is Ring Protein free?

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

### Do Simple Protein Log or Ring Protein have ads?

Simple Protein Log shows ads; Ring Protein does not.

### Which is updated more often, Simple Protein Log or Ring Protein?

Simple Protein Log ships an update every 2 weeks, and Ring Protein every 9 days. Most recently, Simple Protein Log was updated on October 14, 2026 and Ring Protein on October 25, 2026.

---

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