TimerZ vs AeroTime Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TimerZ
This utility app allows users to set multiple countdown timers simultaneously, with options for custom alarms, background operation, and history logging. It offers advanced features like chained timers and Dropbox integration for saving and loading data.
- Multiple simultaneous timers
- Background operation
- Customizable alarms and sounds
- Timer chaining and looping
- Activity history logging
- Dropbox integration
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Why did we create another timer app when there are already dozens in the App Store? Because “Timer Z is the Last Timer You’ll Ever Need”! It's simple to use yet full featured. For example, you can easily set a timer to give a 15 seconds warning before another alarming at 1 minute mark. Some unique features of Timer Z are: - A simple count down timer can be set and started with just 3 taps - Multiple timers can be set and can run simultaneously - The timer will fire even if the Timer Z app is running in the background - Each timer can be named and set to expire after a time interval, or at a specific point in time like an alarm - While a timer is running, it can show remaining time or elapsed time since start, either in full hour/min/sec or just seconds - Background graphics shows the percent of time remaining - A running timer can be paused and resumed to continue where it left off - When a timer expires, there is a choice of alarm sounds, vibration, or no sound at all - Optionally the alarm can continue to sound until acknowledged - Upon expiration, a timer can start another timer, including itself in a loop - Timer activity history is saved and can be emailed, great for record keeping - Timer data can be saved and loaded from a linked Dropbox account Whether you’re looking for a simple timer, or one with all the bells-and-whistles, Timer Z is the best choice! NOTE: this version is limited to 2 timers. Use the convenient in-app purchase of Pro feature to add an unlimited number of timers, and eliminate all advertisements. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
AeroTime Pro
This application provides pilots with essential tools for calculating flight times, night times, and crew rest periods. It also includes a time converter and an offline PDF reader for flight-related documents.
- Block time calculation
- Automatic night time calculation
- Time conversion
- Flight time calculator
- Offline PDF reader
- Long-haul rest calculator
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AeroTime Pro is the essential toolkit for pilots and flight crew, designed to simplify and speed up your day-to-day operational time calculations. Whether you're on the ground planning or in the air on duty, Aerotime delivers precise tools tailored to aviation needs. Key Features: • Block Time Calculator • Instantly calculate block time in both hours & minutes and decimal format. • Automatic Night Time Calculation • Automatically calculate night flight time using accurate Sunrise/Sunset data, Civil Twilight, or customized offsets (e.g. -15 min, -30 min). Manual adjustments also supported. • Time Converter • Seamlessly convert between HH:mm format and decimal time, and vice versa. • Flight Time Calculator • Add or subtract flight times with ease using the built-in aviation-focused time calculator. • Offline PDF Reader • Upload and view your PDF documents (like rosters, flight plans, and more) offline, anytime, anywhere. • Long-Haul Rest Calculator • Easily compute crew rest periods for long-haul operations, helping you comply with complex FTL requirements.
Screenshots
Verdict
The clearest difference is price: TimerZ at Free against AeroTime Pro's $1.99. TimerZ also leads on device support (3 vs 1). AeroTime Pro's advantage is in-app purchases (none vs 2) and update cadence (fortnightly vs every 3 months). On ratings volume, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
TimerZ is free to download; AeroTime Pro costs $1.99 up front. TimerZ sells 2 in-app purchases, starting at $0.99 per month. AeroTime Pro asks for nothing beyond the download.
AeroTime Pro holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 10 and 13 respectively.
TimerZ ships an update every 3 months, AeroTime Pro fortnightly. The most recent releases landed on July 9, 2026 and September 7, 2026 respectively.
| Parameter | TimerZ | AeroTime Pro |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.7 (10 ratings) | 5.0 (13 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 10 | 13 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple TV — better | iPhone |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 65 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Squawk Studio, LLC | Henrique Chelotti Duarte |
Customer experience
TimerZ
AeroTime Pro
In-app purchases
TimerZ
- Pro Monthly$0.991 Month
- Timer Z Pro$4.99
AeroTime Pro
No in-app purchases









