# InstantCert CLEP vs CLEP Natural Science Test Prep

The clearest difference is update cadence: InstantCert CLEP at every 6 months against CLEP Natural Science Test Prep's every 16 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. InstantCert CLEP sells 1 in-app purchase, starting at $19.99 per month and CLEP Natural Science Test Prep sells 9 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

InstantCert CLEP ships an update every 6 months, CLEP Natural Science Test Prep every 16 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | InstantCert CLEP | CLEP Natural Science Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/instantcert-clep/id1238759723/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 16 months |
| Monetization | Subscription | — |
| Size | 38 MB | 53 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [InstantCert.com, LLC](https://appshunter.io/developer/465309084) | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) |

## What reviewers say

### InstantCert CLEP

[App page](https://appshunter.io/ios/app/instantcert-clep/id1238759723)

Prepare for college credit exams like CLEP and DSST with smart flashcards and progress tracking. Study over 60 subjects on your phone and connect with a community of learners. Earn college credit faster and save on tuition.

**Highlights:** Smart flashcards for memorization, Covers CLEP, DSST & TECEP subjects, Mobile study anywhere, Progress tracking, Community support, Over 60 exam subjects

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access (1 Month) | $19.99 | per month |


### CLEP Natural Science Test Prep

[App page](https://appshunter.io/ios/app/clep-natural-science-test-prep/id6741392610)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sciences Weekly Full Access | $8.99 | per 7 days |
| Sciences Monthly Full Access | $24.99 | per month |
| Science Monthly Full Access | $34.99 | per month |
| Science Quarterly Full Access | $55.99 | per 3 months |
| Science Quarterly Full Access | $59.99 | per 3 months |
| Science Semiannual Full Access | $75.99 | per 6 months |
| Science Semiannual Full Access | $79.99 | per 6 months |
| Science Annual Full Access | $109.99 | per year |
| Science Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is InstantCert CLEP free?

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

### Is CLEP Natural Science Test Prep free?

CLEP Natural Science Test Prep is free to download, with in-app purchases available.

### Do InstantCert CLEP or CLEP Natural Science Test Prep have ads?

Neither InstantCert CLEP nor CLEP Natural Science Test Prep shows ads.

### Which is updated more often, InstantCert CLEP or CLEP Natural Science Test Prep?

InstantCert CLEP ships an update every 6 months, and CLEP Natural Science Test Prep every 16 months. Most recently, InstantCert CLEP was updated on November 2, 2026 and CLEP Natural Science Test Prep on November 8, 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.*