iSolveWaiting vs Morse Mania
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSolveWaiting
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This is iSolveWaiting, a waiting line calculator app to get queueing theory statistics and probabilities. A waiting line system is represented by units randomly arriving and trying to be serviced by one or more resources; however a queue line (or waiting line) is going to occur if those units arrive more rapidly than the capacity of the system. Queueing theory is studied in the field of operational research and statistics and probabilities are analytically determined. Usual statistics are utilization rate of the system, length of queue, length of system, time waiting in queue, time spent in the system. There are probabilities such as the probability of how busy the system is or not, the probability of an arrival having to wait or not, etc. Those performance measures are important as issues or problems caused by queueing situations are often related to customer dissatisfaction with service or may be the root cause of economic losses in a business. Analysis of the relevant queueing models allows the cause of queueing issues to be identified and the impact of proposed changes to be assessed. This version is universal: iPad and iPhone under 17 or later as well as on Apple Silicon Mac.
Morse Mania
Master Morse code with this comprehensive app. It offers structured lessons for both sending and receiving, covering letters, numbers, symbols, and advanced codes. Customize your learning experience with adjustable speeds, output modes, and practice tools.
- 135 levels for receiving Morse code
- 135 levels for sending Morse code
- Multiple output modes (audio, light, vibration)
- Customizable practice levels
- Challenge levels to test knowledge
- Adjustable speed and sound frequency
- Offline functionality
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In both the receiving and sending modes, the app starts with the easiest letters (E and T) and moves to more complicated ones. Once you master all the letters, it teaches you numbers and other symbols, and then proceeds to Prosigns, Q-codes, abbreviations, words, Callsigns, phrases and sentences. ---------------------------- Features: - 135 levels teach you to recognize (receive) 26 Latin letters, numbers, 18 punctuation marks, 20 non-Latin extensions, procedure signs (prosigns), Q-codes, most popular abbreviations, words, callsigns, phrases and sentences. - Another 135 levels teach and train you to send the Morse code. - 5 output modes: audio (default), blinking light, flashlight, vibration and light + sound. - 7 different keys for sending Morse code (e.g. iambic key). - 52 challenge levels test and consolidate your knowledge. - Custom level: create your own level to practice symbols of your choice. Save your own list of symbols and load anytime. - NEW! “Playground” to test and train your Morse code sending skills. - Smart learning: custom level choice is pre-populated with symbols where you made the mistakes most recently. - Support for external keyboard. - Hints (for free!) when you need help. - Explore mode: if you want to hear the symbols, or see a list of prosigns, Q-codes & other abbreviations and hear their sound representation. - 4 themes to choose from, from bright to dark. - 9 different keyboard layouts: QWERTY, AZERTY, QWERTZ, ABCDEF, Dvorak, Colemak, Maltron, Workman, Halmak. - Randomize letter/symbol positions for each level (to ensure you're not just learning the position of the symbols on the keyboard). - Absolutely no ads. - Works completely offline. ---------------------------- Completely customize the app: - Adjustable speed: from 5 to 45 WPM (words per minute). Less than 20 is not recommended though, as it doesn't help you to actually learn the language. - Adjustable sound frequency: 400 to 1000 Hz. - Adjustable Farnsworth speed: from 5 to 45 WPM. Determines how long are the spaces between letters. - Adjustable difficulty level for sending the Morse code. - Disable/enable the progress circle in Settings. - Settings for progress speed, review time, time pressure and lives in challenges. - Setting for background noise: to better support some Bluetooth earphones that keep disconnecting from the phone while you play, or just to make it more challenging. - Ability to jump to the past levels to revise, or skip some if you're already familiar with certain characters. - Ability to reset mistakes and levels. ---------------------------- Read our dedicated blog posts to get the most out of the game. Have any comments, questions or advice? Don't hesitate to email us, we'll reply right away! ---------------------------- Links: - Privacy Policy: http://morse.countrymania.net/privacy - Terms of Use: http://morse.countrymania.net/tos Have fun learning!
Screenshots
Verdict
The clearest difference is price: Morse Mania at Free against iSolveWaiting's $2.99. Morse Mania also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (13.0 vs 18.6). iSolveWaiting's advantage is in-app purchases (none vs 3). On ads and device support 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
Morse Mania is free to download; iSolveWaiting costs $2.99 up front. Morse Mania sells 3 in-app purchases, starting at $0.99 per month. iSolveWaiting asks for nothing beyond the download.
iSolveWaiting ships an update every 14 months, Morse Mania every 2 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | iSolveWaiting | Morse Mania |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.9 (8.2K ratings) — better |
| Positive reviews | — | 92.3% of reviews |
| Number of ratings | — | 8.2K — better |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | MINDTech | Xiang Dong |
Bugs and requests
iSolveWaiting
Not enough reviews yet to summarise bugs or requests.
Morse Mania
Reported bugs
2 issues- Sound/audio issues in challenge mode
- Farnsworth settings not working as expected
Requested features
4 requests- Vibration feedback option
- Visualize dots and dashes
- Ability to use external keyboard
- More practice modes (e.g., custom sentences)
In-app purchases
iSolveWaiting
No in-app purchases
Morse Mania
- Monthly premium subscription$0.991 Month
- Beginner’s Bundle$4.99
- Pro Bundle$8.99









