# Relief vs SipFlow

The clearest difference is update cadence: SipFlow at every 5 days against Relief's fortnightly. Relief's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Relief sells 3 in-app purchases, starting at $3.99 per month and SipFlow sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Relief ships an update fortnightly, SipFlow every 5 days. The most recent releases landed on October 11, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Relief | SipFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 160 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Farid Jafarli](https://appshunter.io/developer/1893819065) | [Stanislav Kotlyarenko](https://appshunter.io/developer/6819589804) |

## What reviewers say

### Relief

[App page](https://appshunter.io/ios/app/relief-cbt-reframing-tool/id6762535735)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual | $24.99 | per year |
| Lifetime | $49.99 | one-time |


### SipFlow

[App page](https://appshunter.io/ios/app/sipflow-water-tracker/id6819768243)

**Features:** macOS Compatibility, Apple Watch app, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SipFlow Plus Monthly | $2.99 | per month |
| SipFlow Plus Yearly | $14.99 | per year |
| SipFlow Plus Forever | $29.99 | one-time |


## Frequently asked questions

### Is Relief free?

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

### Is SipFlow free?

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

### Do Relief or SipFlow have ads?

Neither Relief nor SipFlow shows ads.

### Which is updated more often, Relief or SipFlow?

Relief ships an update fortnightly, and SipFlow every 5 days. Most recently, Relief was updated on October 11, 2026 and SipFlow on October 26, 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.*