Comparison

Memosaurus vs MTP Callsign Trainer

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Memosaurus

Features
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Are you tired of cramming for exams and then forgetting everything? Do you want to remember what you have learned forever? Then Memosaurus is the solution you've been looking for! Add links and notes to the things you want to learn. Memosaurus will remind you to review the material at increasing intervals. This learning technique is called "spaced repetition". It's a proven scientific learning method that optimises your study time and helps you remember information more effectively. By spacing out your review sessions, you can improve your retention and recall. But Memosaurus is not an ordinary flashcard app. Instead of creating flashcards, you can add links to anything you want: An interesting article, a blog post or even your own school notes. Unlock your full potential and achieve your goals with this powerful learning technique! With Memosaurus you can: - organise your learning units in folders - choose from several spaced repetition algorithms - choose between manual and automatic scheduling of reviews - sync units across all your devices using iCloud - view upcoming units in a home screen widget - search for units using Spotlight - quickly add new units from Safari using drag-and-drop You can create 15 units for free or purchase the Pro version for unlimited units. Have fun!

About

MTP Callsign Trainer

Features
Read full description

MTP Callsign Trainer is built for operators who want to read callsigns quickly and accurately. It focuses on the patterns you actually hear on the air: prefixes, suffixes, portable indicators, and regional formats. Choose your difficulty level and session length, then copy live-style callsigns at speed. The feedback is straightforward so you can spot common errors and adjust pacing without getting lost in extra features. Callsign copying is a unique skill because the format changes by region and by operating style. This trainer emphasizes variety so you can recognize common structures without hesitation. It is ideal for contest preparation, sked practice, or everyday CW readiness. Sessions are short enough to fit into a break, yet structured enough to build confidence over time. You can use the trainer as a daily warmup or as a focused block when you notice certain prefixes or suffixes slowing you down. The goal is steady recognition and a relaxed copy flow, not just speed for its own sake. That makes it useful for both new operators and experienced contesters who want consistent accuracy. Because it is a dedicated micro-app, there are no distractions from other modules. Just start a session, copy what you hear, and build confidence one call at a time. MTP Callsign Trainer is part of the Morse Trainer Pro ecosystem, giving you a consistent training feel while concentrating on a single skill.

Screenshots

Memosaurus4 screens
MTP Callsign Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: MTP Callsign Trainer at none against Memosaurus's 1. MTP Callsign Trainer also leads on update cadence (every 6 weeks vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Memosaurus sells 1 one-off in-app purchase. MTP Callsign Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Memosaurus ships an update every 13 months, MTP Callsign Trainer every 6 weeks. Both last shipped on October 25, 2026.

Scorecard2 real differences ยท 4 level
Memosaurus versus MTP Callsign Trainer: the parameters behind the verdict, then further details
ParameterMemosaurusMTP Callsign Trainer
PriceFreeFree
Update frequencyEvery 13 monthsEvery 6 weeks โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.015.1 โ€” better
Further details โ€” not scored
Size8 MB49 MB
Age rating17+4+
DeveloperJan HuberOliver Bross

In-app purchases

1 purchases

Memosaurus

One-time1
  • Pro$5.99
None

MTP Callsign Trainer

No in-app purchases

Questions

Is Memosaurus free?
Memosaurus is free to download, with in-app purchases available.
Is MTP Callsign Trainer free?
MTP Callsign Trainer is free to download, with no in-app purchases.
Do Memosaurus or MTP Callsign Trainer have ads?
Neither Memosaurus nor MTP Callsign Trainer shows ads.
Which is updated more often, Memosaurus or MTP Callsign Trainer?
Memosaurus ships an update every 13 months, and MTP Callsign Trainer every 6 weeks. Most recently, Memosaurus was updated on October 25, 2026 and MTP Callsign Trainer on October 25, 2026.

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