# PTERS vs flex

The clearest difference is in-app purchases: flex at none against PTERS's 1. flex also leads on update cadence (every 3 days vs every 3 months). PTERS's advantage is review sentiment (49% vs 29%) and device support (3 vs 1). On price, ads and monetization model there is nothing between them.

Both are free to download. PTERS sells 1 one-off in-app purchase. flex asks for nothing beyond the download.

PTERS ships an update every 3 months, flex every 3 days. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PTERS | flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (18 ratings)](https://appshunter.io/ios/app/flex-relations-driven-ax/id1535757707/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | **48.8% of reviews** | 29.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 12 MB | 485 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alogic Inc.](https://appshunter.io/developer/1373054818) | [플렉스 주식회사](https://appshunter.io/developer/1535757709) |

## What reviewers say

### PTERS

[App page](https://appshunter.io/ios/app/pters/id1373054819)

This app helps instructors manage lessons, schedules, and student information. It allows for easy booking, cancellation, and tracking of student progress and attendance. Ideal for various teaching professionals to streamline their operations.

**Highlights:** Lesson scheduling and management, Student registration and tracking, Attendance and session tracking, Customizable lesson rules, Instructor availability settings, Real-time notifications

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 - 30일권 | $6.99 | one-time |


### flex

[App page](https://appshunter.io/ios/app/flex-relations-driven-ax/id1535757707)

This app centralizes all HR data, streamlining team growth through seamless data flow. It offers mobile access to attendance tracking, leave requests, approvals, company information, and internal communications.

**Highlights:** Mobile attendance tracking, Leave and vacation requests/approvals, Electronic approvals and workflows, View payslips and company info, Internal announcements and feedback, Automated leave management

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and convenient
- 👍 Good design and user-friendly
- 👍 Useful for leave and salary confirmation
- 👍 Convenient for attendance management
- 👍 Better than previous apps

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🐛 Login issues and errors
- 🐛 Poor UI/UX design
- 🐛 Slow performance
- 🐛 Inconsistent functionality

**Reported bugs**

- App crashes immediately after launch
- App won't launch
- App freezes or becomes unresponsive
- Login fails or infinite loading
- Attendance buttons not working

**Requested features**

- Allow writing reviews via app
- Add widget for attendance
- Add remaining time display
- Improve UI for break time registration
- Add Apple Shortcuts support


## Frequently asked questions

### Is PTERS free?

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

### Is flex free?

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

### Do PTERS or flex have ads?

Neither PTERS nor flex shows ads.

### Which is updated more often, PTERS or flex?

PTERS ships an update every 3 months, and flex every 3 days. Most recently, PTERS was updated on October 6, 2026 and flex on October 12, 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.*