# ATALUP vs CENTA® for Teachers

The clearest difference is in-app purchases: ATALUP at none against CENTA® for Teachers's 13. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CENTA® for Teachers sells 13 in-app purchases, starting at $12.99 per year. ATALUP asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 8 days. The most recent releases landed on September 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ATALUP | CENTA® for Teachers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (17 ratings)](https://appshunter.io/ios/app/centa-for-teachers/id6450893643/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 127 MB | 143 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Stemious Solutions Private Limited](https://appshunter.io/developer/1535183799) | [CENTA](https://appshunter.io/developer/1695552429) |

## What reviewers say

### ATALUP

[App page](https://appshunter.io/ios/app/atalup/id1535183797)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### CENTA® for Teachers

[App page](https://appshunter.io/ios/app/centa-for-teachers/id6450893643)

Enhance your teaching career with professional development, career opportunities, and a global community. Access over 1000 learning resources, get certified, and track your progress. Connect with educators worldwide.

**Highlights:** Teaching competency certification and assessment, Career opportunities and rewards, 1000+ curated learning resources, Global teacher community, Personalized learning recommendations, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CENTA Plus Special Price | $12.99 | per year |
| CENTA Plus | $14.99 | per year |
| CENTA AI Tier 3 | $0.99 | one-time |
| CENTA AI Tier 2 | $1.99 | one-time |
| Subscription Product Tier 3 | $4.99 | one-time |
| CENTA AI Tier 1 | $4.99 | one-time |
| Subscription Product Tier 4 | $5.99 | one-time |
| Subscription Product Tier 5 | $7.99 | one-time |
| Subscription Product Tier 6 | $8.99 | one-time |
| CENTA AI Tier 4 | $9.99 | one-time |
| Subscription Product Tier 12 | $9.99 | one-time |
| Subscription Product Tier 14 | $12.99 | one-time |
| Learning Product Tier 14 | $12.99 | one-time |


## Frequently asked questions

### Is ATALUP free?

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

### Is CENTA® for Teachers free?

CENTA® for Teachers is free to download, with in-app purchases available.

### Do ATALUP or CENTA® for Teachers have ads?

Neither ATALUP nor CENTA® for Teachers shows ads.

### Which is updated more often, ATALUP or CENTA® for Teachers?

ATALUP ships an update every 8 days, and CENTA® for Teachers every 8 days. Most recently, ATALUP was updated on September 26, 2026 and CENTA® for Teachers on October 27, 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.*