# SAS Math Stretch vs Cogo

The clearest difference is update cadence: Cogo at every 4 months against SAS Math Stretch's every 10 months. Cogo also leads on device support (3 vs 1). SAS Math Stretch's advantage is iOS requirement (9.1 vs 15.0). On price, ads and in-app purchases there is nothing between them.

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

SAS Math Stretch ships an update every 10 months, Cogo every 4 months. The most recent releases landed on June 5, 2026 and May 31, 2026 respectively.

## The numbers

| Metric | SAS Math Stretch | Cogo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sas-math-stretch/id607137453/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 88 MB | 183 MB |
| Requires iOS | **9.1** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SAS Institute Inc.](https://appshunter.io/developer/364784971) | [Neeuro Pte Ltd](https://appshunter.io/developer/960758140) |

## What reviewers say

### SAS Math Stretch

[App page](https://appshunter.io/ios/app/sas-math-stretch/id607137453)

This app offers a variety of interactive activities designed to build elementary math skills and number sense. It covers counting, number relations, operations, and time-telling with customizable difficulty levels. Progress can be easily shared with parents and teachers.

**Highlights:** Counting and number relations activities, Time telling and manipulation exercises, Practice and quiz modes, Customizable difficulty levels, Progress sharing with parents/teachers, Whole numbers, fractions, and decimals support

**Features:** macOS Compatibility

**In-app purchases:** none


### Cogo

[App page](https://appshunter.io/ios/app/cogo-attention-training/id1631065149)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAS Math Stretch free?

SAS Math Stretch is free to download, with no in-app purchases.

### Is Cogo free?

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

### Do SAS Math Stretch or Cogo have ads?

Neither SAS Math Stretch nor Cogo shows ads.

### Which is updated more often, SAS Math Stretch or Cogo?

SAS Math Stretch ships an update every 10 months, and Cogo every 4 months. Most recently, SAS Math Stretch was updated on June 5, 2026 and Cogo on May 31, 2026.

---

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