# Client Appointment Tracker vs Otolog

The clearest difference is update cadence: Client Appointment Tracker at every 2 weeks against Otolog's every 4 weeks. Client Appointment Tracker also leads on iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Client Appointment Tracker sells 3 in-app purchases, starting at $9.99 per month and Otolog sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Client Appointment Tracker ships an update every 2 weeks, Otolog every 4 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Client Appointment Tracker | Otolog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 5 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Konstantin Khoroshun](https://appshunter.io/developer/1476700024) | [YANGLI CHEN](https://appshunter.io/developer/1886058795) |

## What reviewers say

### Client Appointment Tracker

[App page](https://appshunter.io/ios/app/client-appointment-tracker/id6771002707)

This app helps session-based professionals manage clients, schedule appointments, and track payments. It offers features for client relationship management, income monitoring, and business analytics to streamline operations and foster growth.

**Highlights:** Schedule appointments (one-time & recurring), Track client profiles and contact info, Manage payments and outstanding balances, Monitor revenue and business analytics, Create tasks and reminders, Visual calendar with daily timeline

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly purchase | $9.99 | per month |
| Annual purchase | $79.99 | per year |
| Purchase lifetime | $9.99 | one-time |


### Otolog

[App page](https://appshunter.io/ios/app/otolog-music-lesson-log/id6791038062)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otolog Pro | $11.99 | one-time |


## Frequently asked questions

### Is Client Appointment Tracker free?

Client Appointment Tracker is free to download, with in-app purchases available.

### Is Otolog free?

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

### Do Client Appointment Tracker or Otolog have ads?

Neither Client Appointment Tracker nor Otolog shows ads.

### Which is updated more often, Client Appointment Tracker or Otolog?

Client Appointment Tracker ships an update every 2 weeks, and Otolog every 4 weeks. Most recently, Client Appointment Tracker was updated on October 31, 2026 and Otolog on November 5, 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.*