Comparison

MathMentor Pro vs NerLan

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

Head to head
About

MathMentor Pro

Features
Read full description

Your Math Tutor at the Fingertip! MathMentor Pro turns any math worksheet into your personalized SAT and PSAT practice. Just snap a picture of a worksheet with your phone or device, and MathMentor Pro generates 10 new problems matched to what you are already working on, including five problems at the same difficulty and another five at a level harder to help your student excel at the target math concept and skill. A Digital Math Tutor Guides Your Growth Every problem includes a complete, step-by-step solution with clear mathematical notation. Designed for grades 6โ€“12. Pre-algebra through precalculus, all SAT/PSAT domains covered with no manual setup required. Full solutions, not just answers. Each worked solution explains the reasoning behind every step, so you can learn why an answer is correct - really dive into the concept and skill to own it! Zero Sweat in Running & Save all Your Energy to Learning Export to PDF. Print a clean worksheet or answer key and share via AirDrop, Mail, or Files. Sign in with Apple keeps your account secure across devices. Subscriptions auto-renew and can be cancelled any time in your Apple ID settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

NerLan

Features
Read full description

NerLan is a podcast player built for people learning a language by listening. Subscribe to any show by pasting an Apple Podcasts link or an RSS address, then play it with the controls a learner actually needs: variable speed from 0.5x to 2x, repeat one or repeat all, precise skip, and a lock screen and Control Center that move between episodes rather than nudging fifteen seconds at a time. Then study what you heard. TRANSCRIPTS THAT FOLLOW ALONG Generate a transcript of any episode and the sentence being spoken stays highlighted and centred as the audio plays. Tap a line to jump straight to it, or loop a single sentence until it sticks. TRANSLATION Render the transcript into your language, sentence by sentence, and read it alongside the original. Generated once and kept, so re-reading costs nothing. STUDY HANDOUTS Turn an episode into a review sheet - overview, grammar points, example sentences, and vocabulary - drawn from its own transcript. Examples stay in the language you are studying, glossed in the language you choose. SHADOWING PRACTICE Loop a sentence, record yourself reading it aloud, and play your version back against the original. LISTEN OFFLINE Download episodes for the commute, or let anything you stream to the end be kept automatically. Downloads are grouped by show and language, filterable, and available with no signal. WIDGETS Up Next, Latest Episode, My Shows, and a listening-streak widget for the Home and Lock Screen - all playable without opening the app. SIRI "Play [show] in NerLan", resume where you left off, change the speed, or ask how long you have listened this week. Give a show a nickname Siri can actually hear when its real title is in a script Siri does not speak. YOUR AI, YOUR CHOICE AI features are optional and run on credentials you provide - either an OpenAI API key billed to your own account, or your own OpenAI-compatible server, including one on your own machine. Your key is kept in the device keychain. PRIVATE BY CONSTRUCTION No account, no sign-up, no analytics, no advertising, no tracking, and no third-party SDKs. There is no NerLan server, so there is nowhere for your listening to be sent. Optional iCloud sync writes to your own account so your library survives a reinstall; audio is never synced. NerLan plays podcasts from their own public feeds. All audio content belongs to its publishers.

Screenshots

MathMentor Pro4 screens
NerLan4 screens

Verdict

The call

The clearest difference is in-app purchases: NerLan at none against MathMentor Pro's 2. NerLan also leads on iOS requirement (17.0 vs 26.0). On price, ads and device support 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. MathMentor Pro sells 2 in-app purchases, starting at $9.99 per month. NerLan asks for nothing beyond the download.

Scorecard2 real differences ยท 3 level
MathMentor Pro versus NerLan: the parameters behind the verdict, then further details
ParameterMathMentor ProNerLan
PriceFreeFree
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 โ€” better
Further details โ€” not scored
Size17 MB3 MB
Age rating4+17+
DeveloperSHIHYI HSUEHMAO YUAN KAO

In-app purchases

2 purchases

MathMentor Pro

Subscriptions2
  • MathMentor Pro$9.991 Month
  • MathMentor Pro$99.991 Year
None

NerLan

No in-app purchases

Questions

Is MathMentor Pro free?
MathMentor Pro is free to download, with in-app purchases available.
Is NerLan free?
NerLan is free to download, with no in-app purchases.
Do MathMentor Pro or NerLan have ads?
Neither MathMentor Pro nor NerLan shows ads.

Other comparisons