Solves vs Time Calculator App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solves
A powerful and versatile calculator for all your Apple devices. Edit complex expressions, sync history across devices, and enjoy a clean, ad-free experience. Unlock advanced features like unit conversion and fraction support with an optional upgrade.
- Edit expressions without limitations
- Instant results
- Sync calculation history across devices
- Unit conversion (currencies, physical units)
- Fraction support
- Customizable themes
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Solves is a well-made calculator app for your iPhone, iPad, Mac, and Apple Watch. It allows you to edit expressions without limitations and get instant results. It keeps your calculation history in sync on all devices and lets you to easily interact with it. All this for free and without ads! By purchasing Solves+ you also get: • Unit Conversions: currencies (with crypto, metals & energy), physical units, and your own! • History Tools: comment, bookmark, export, auto clear, and more • Fractions • More Themes • Advanced Settings Hand-typed code. No generative AI was used during the development or by the app itself. Solves+ requires one payment only. You will own it forever on all devices.
Time Calculator App
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Flight Time Calculations & Crew Rest Management The essential two-in-one utility for flight crews and aviation professionals is here, combining a powerful, flexible Aviation Time Calculator with an intelligent Crew Rest Splitter. Designed by pilots for pilots, this app minimizes manual workload and eliminates mental math errors during critical phases of flight. 1) FLIGHT TIME CALCULATOR A robust tool engineered to handle the unique demands of aviation mathematics. Unlike standard calculators, this module processes time in hours and minutes natively—perfect for logbook totals and FTL tracking. Intelligent Input Recognition: Quick Format (HHMM): Simply type '1030' for 10 hours 30 minutes. Standard Format (H:MM): Use the colon separator for traditional entries. Minutes Only: Type '45' for 45 minutes. Running Total: Keep an eye on your accumulated time right on the screen. Perfect for summing up block times for an entire month or year. Calculation History: Hit the 'H' button to see your last 10 operations. Never lose track of your logbook entries again. Direct Time Arithmetic: Add or subtract flight times directly without the need for decimal conversions. 2) CREW REST CALCULATOR Create fair, accurate, and operational-ready rest schedules in seconds. This module eliminates awkward splits and ensures equitable rest distribution for the entire crew. Smart Rounding (NEW): Introducing an intelligent rounding toggle! Align rest end times to the nearest 5-minute interval. Our fair-share algorithm automatically redistributes remainder minutes across all periods to ensure the most equitable distribution possible. Multi-Crew Support: Instantly generate rest periods for 2, 3, or 4 pilot operations (Augmented and Heavy crews). Gap Management: Specify optional handover gaps (5, 10, or 15 minutes) to account for seat changes, briefings, and cockpit procedures. Conflict-Free Results: Get a perfectly balanced rest plan in seconds—clear, readable, and ready to share with your team. WHY PILOTS CHOOSE THIS APP: Fully Responsive: Switches cleanly between portrait and landscape for easy use on any phone or tablet. High-Contrast Design: Focused, clean UI that cuts out visual noise, making it easy to read in various cockpit lighting conditions. Pilot-Centric Logic: Engineered for the speed and precision required in real-world flight operations. Streamline your cockpit operations today with accurate, reliable, and pilot-focused tools.
Screenshots
Verdict
The clearest difference is price: Solves at Free against Time Calculator App's $0.99. Solves also leads on update cadence (every 3 weeks vs every 2 months) and device support (5 vs 3). Time Calculator App's advantage is in-app purchases (none vs 6) and iOS requirement (13.0 vs 15). On ads 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
Solves is free to download; Time Calculator App costs $0.99 up front. Solves sells 6 one-off in-app purchases. Time Calculator App asks for nothing beyond the download.
Solves ships an update every 3 weeks, Time Calculator App every 2 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.
| Parameter | Solves | Time Calculator App |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.9 (382 ratings) — better | — |
| Positive reviews | 90.6% of reviews | — |
| Number of ratings | 382 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15 | 13.0 — better |
| Further details — not scored | ||
| Size | 82 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleg Barinov | AYLIN BICEN |
Bugs and requests
Solves
Reported bugs
4 issues- Crashes when pressing certain buttons
- Issues with parsing complex expressions
- Incorrect results for some calculations
- Problems with history clearing or syncing
Requested features
6 requests- Add support for fractions and mixed numbers
- Implement a widget for quick access
- Allow resizing the app window on Mac
- Provide more customization options
- Add support for Apple Watch
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- Improve unit conversion experience
Time Calculator App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solves
- Tip Option #1$0.99
- Tip Option #2$1.99
- Tip Option #3$4.99
Show 3 moreShow fewer
- Tip Option #4$9.99
- Solves+$9.99
- Tip Option #5$19.99
Time Calculator App
No in-app purchases
Questions
Is Solves free?
Is Time Calculator App free?
Do Solves or Time Calculator App have ads?
Which is updated more often, Solves or Time Calculator App?
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