# Desmos Test Mode vs CK

The clearest difference is review sentiment: Desmos Test Mode at 17% against CK's 0%. Desmos Test Mode also leads on ratings volume (368 vs 18) and rating (1.6 vs 1.4). CK's advantage is iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Desmos Test Mode holds the better App Store score, 1.6 against 1.4. That said, the two scores are not equally well evidenced: Desmos Test Mode has 368 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 17% of Desmos Test Mode's written reviews are positive against 0% of CK's.

Desmos Test Mode ships an update every 4 months, CK every 9 months. The most recent releases landed on September 10, 2026 and July 18, 2026 respectively.

## The numbers

| Metric | Desmos Test Mode | CK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (368 ratings)](https://appshunter.io/ios/app/desmos-test-mode/id977381005/reviews)** | [1.4 (18 ratings)](https://appshunter.io/ios/app/ck-auth/id1342083838/reviews) |
| Number of ratings | **368** | 18 |
| Positive reviews | **16.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 6 MB | 2 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Desmos](https://appshunter.io/developer/653517543) | [ContentKeeper Technologies](https://appshunter.io/developer/1342083837) |

## What reviewers say

### Desmos Test Mode

[App page](https://appshunter.io/ios/app/desmos-test-mode/id977381005)

This app provides restricted versions of graphing and scientific calculators designed to meet exam requirements. It allows users to practice for specific state or national assessments by selecting the appropriate test mode. Full, unrestricted calculator features are available in separate applications.

**Highlights:** Exam-compliant calculator modes, Graphing capabilities, Scientific calculator functions, Data tables and statistics, Interactive sliders, Points of interest on graphs

**In-app purchases:** none

**What reviewers like**

- 🚀 Useful app for tests
- 🔒 Secure calculator mode
- 👍 Free alternative to expensive calculators

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔒 Overly restrictive app lock
- 👎 Poor user interface and usability

**Reported bugs**

- App crashes and freezes during use
- Unexpected phone behavior and lockouts
- Compatibility issues across different devices and OS versions

**Requested features**

- Add customization options for the calculator interface
- Improve compatibility with older devices
- Provide more flexible calculator modes during tests


### CK

[App page](https://appshunter.io/ios/app/ck-auth/id1342083838)

This app offers a secure and filtered internet browsing experience for iOS users, ensuring CIPA compliance for educational institutions. It provides granular, identity-based reporting and policy-driven web access control, whether users are on-premises or traveling globally.

**Highlights:** Secure internet browsing, Identity-based reporting, Policy-based filtering, CIPA compliance, Global web access control, MDM deployment

**In-app purchases:** none


## Frequently asked questions

### Is Desmos Test Mode free?

Desmos Test Mode is free to download, with no in-app purchases.

### Is CK free?

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

### Which has better reviews, Desmos Test Mode or CK?

Desmos Test Mode is rated higher. Desmos Test Mode averages 1.6 out of 5 from 368 ratings, while CK averages 1.4 from 18 ratings.

### Do Desmos Test Mode or CK have ads?

Neither Desmos Test Mode nor CK shows ads.

### Which is updated more often, Desmos Test Mode or CK?

Desmos Test Mode ships an update every 4 months, and CK every 9 months. Most recently, Desmos Test Mode was updated on September 10, 2026 and CK on July 18, 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.*