# SleepTank™ vs Poolendar

The clearest difference is in-app purchases: SleepTank™ at none against Poolendar's 6. SleepTank™ also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Poolendar sells 6 in-app purchases, starting at $1.99 per month. SleepTank™ asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | SleepTank™ | Poolendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 25 MB | 19 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [Institutes for Behavior Resources, Inc.](https://appshunter.io/developer/1523726030) | [Juan Colilla](https://appshunter.io/developer/1526484935) |

## What reviewers say

### SleepTank™

[App page](https://appshunter.io/ios/app/sleeptank/id6480587444)

**Features:** macOS Compatibility

**In-app purchases:** none


### Poolendar

[App page](https://appshunter.io/ios/app/poolendar/id6757929768)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Analysis - Monthly | $1.99 | per month |
| Social Group Creator - Monthly | $2.99 | per month |
| AI Analysis - Annual | $17.99 | per year |
| Social Group Creator - Annual | $29.99 | per year |
| Medical Report Export | $4.99 | one-time |
| Poolendar Founder | $249.99 | one-time |


## Frequently asked questions

### Is SleepTank™ free?

SleepTank™ is free to download, with no in-app purchases.

### Is Poolendar free?

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

### Do SleepTank™ or Poolendar have ads?

Neither SleepTank™ nor Poolendar shows ads.

### Which is updated more often, SleepTank™ or Poolendar?

SleepTank™ ships an update every 2 months, and Poolendar every 2 months. Most recently, SleepTank™ was updated on October 25, 2026 and Poolendar 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.*