# AOne vs CALMS Parent

The clearest difference is rating: AOne at 3.5 against CALMS Parent's 1.0. AOne also leads on update cadence (every 8 days vs every 4 weeks). CALMS Parent's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, 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.

AOne holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

AOne ships an update every 8 days, CALMS Parent every 4 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AOne | CALMS Parent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/aone/id1422236557/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/calms-parent/id6448345695/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 67 MB | 71 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [My Aone Learning](https://appshunter.io/developer/824087514) | [Calms Technologies Sdn Bhd](https://appshunter.io/developer/1466030107) |

## What reviewers say

### AOne

[App page](https://appshunter.io/ios/app/aone/id1422236557)

This app connects parents, students, teachers, and center owners with real-time updates on class changes, attendance, and payments. It facilitates easy fee management and keeps users informed about important announcements from their learning centers, aiming to simplify the educational journey.

**Highlights:** Real-time class change notifications, Easy attendance tracking, Effortless fee management and payment tracking, Important announcements and news updates, Centralized communication platform

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

**In-app purchases:** none


### CALMS Parent

[App page](https://appshunter.io/ios/app/calms-parent/id6448345695)

This app offers an all-in-one solution for managing school or campus infrastructure. It aims to create a safe, secure, and cost-effective learning environment through innovative technologies.

**Highlights:** Smart campus infrastructure management, Safe and secure learning environment, Cost-effective solutions, Innovative technologies, All-in-one educational institution management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AOne free?

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

### Is CALMS Parent free?

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

### Which has better reviews, AOne or CALMS Parent?

AOne is rated higher. AOne averages 3.5 out of 5 from 2 ratings, while CALMS Parent averages 1.0 from 1 ratings.

### Do AOne or CALMS Parent have ads?

Neither AOne nor CALMS Parent shows ads.

### Which is updated more often, AOne or CALMS Parent?

AOne ships an update every 8 days, and CALMS Parent every 4 weeks. Most recently, AOne was updated on November 6, 2026 and CALMS Parent on November 3, 2026.

---

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