# Reeft Abcus vs Thietk Ousep

Reeft Abcus and Thietk Ousep are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Reeft Abcus ships an update fortnightly, Thietk Ousep every 2 weeks. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Reeft Abcus | Thietk Ousep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 50 MB | 58 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hoi Le Thang](https://appshunter.io/developer/6786999190) | [Tien Thong Trinh](https://appshunter.io/developer/6789466894) |

## What reviewers say

### Reeft Abcus

[App page](https://appshunter.io/ios/app/reeft-abcus/id6786999188)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thietk Ousep

[App page](https://appshunter.io/ios/app/thietk-ousep/id6789466892)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reeft Abcus free?

Reeft Abcus is free to download, with no in-app purchases.

### Is Thietk Ousep free?

Thietk Ousep is free to download, with no in-app purchases.

### Do Reeft Abcus or Thietk Ousep have ads?

Neither Reeft Abcus nor Thietk Ousep shows ads.

### Which is updated more often, Reeft Abcus or Thietk Ousep?

Reeft Abcus ships an update fortnightly, and Thietk Ousep every 2 weeks. Most recently, Reeft Abcus was updated on October 21, 2026 and Thietk Ousep on October 19, 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.*