# StackProof vs Cira

The clearest difference is iOS requirement: StackProof at 15.1 against Cira's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. StackProof sells 3 in-app purchases, starting at $1.99 per month and Cira sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

StackProof ships an update weekly, Cira every 5 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | StackProof | Cira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 42 MB | 13 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [joel Saucedo Lozano](https://appshunter.io/developer/1895885764) | [ARVIDS KAPUSTA](https://appshunter.io/developer/6797179465) |

## What reviewers say

### StackProof

[App page](https://appshunter.io/ios/app/stackproof-supplement-tracker/id6764703324)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $34.99 | per year |
| Lifetime | $59.99 | one-time |


### Cira

[App page](https://appshunter.io/ios/app/cira-caffeine-tracker-and-sleep/id6805332906)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cira Premium Weekly | $2.99 | per 7 days |
| Cira Premium Monthly | $5.99 | per month |


## Frequently asked questions

### Is StackProof free?

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

### Is Cira free?

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

### Do StackProof or Cira have ads?

Neither StackProof nor Cira shows ads.

### Which is updated more often, StackProof or Cira?

StackProof ships an update weekly, and Cira every 5 days. Most recently, StackProof was updated on October 2, 2026 and Cira on October 3, 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.*