Comparison

NerdTrack vs OTC Memo

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

Head to head
About

NerdTrack

Features
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NerdTrack records your location in a CSV file on your phone. No other data is collected and no data ever leaves your device. Full source is available at https://nerdtrack.org There is no interactive UI. Just grant location permissions, and it will log in the background. To stop logging, remove location permissions or uninstall app. The app uses the SignificantLocation and CLVisit APIs. The accuracy is low but it has very low battery usage. To get your log, open the Files app, and look for locations.csv in the Nerd Track folder. A config file will be created in the app's documents folder the first time it runs. Edit that file to change logging frequency or minimal distance. Force-stop and restart app to reload config. By default, the app records location: - Every 15 minutes, if you have moved more than 300 meters The CSV logs timestamps in the unix epoch format. Use 'dateconv -i %s' to convert it to something more human-readable. Some helper scripts are available at https://nerdtrack.org

About

OTC Memo

Features
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Ever find it a hassle to long-press, select, and copy when copying notes? This app splits sentences based on line breaks during editing, allowing you to copy each one with a one tap. Simply write your notes with line breaks, and they'll automatically organize like “tags.” Copy with a single tap, making it perfect for use as a “phrase dictionary” or “template text.” Copied tags change color for instant recognition. Full-text search supported. Supports creating QR codes for memos and scanning QR codes. Supports the memo sharing button.

Screenshots

NerdTrack2 screens
OTC Memo4 screens

Verdict

The call

The clearest difference is update cadence: OTC Memo at weekly against NerdTrack's every 2 months. OTC Memo also leads on device support (3 vs 1) and iOS requirement (16.4 vs 18.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NerdTrack ships an update every 2 months, OTC Memo weekly. Both last shipped on October 25, 2026.

Scorecard3 real differences · 3 level
NerdTrack versus OTC Memo: the parameters behind the verdict, then further details
ParameterNerdTrackOTC Memo
PriceFreeFree
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.016.4 — better
Further details — not scored
Size0 MB41 MB
Age rating4+4+
DeveloperEllo Skelling ProductionsKatsushi Kawamori

In-app purchases

None

NerdTrack

No in-app purchases

None

OTC Memo

No in-app purchases

Questions

Is NerdTrack free?
NerdTrack is free to download, with no in-app purchases.
Is OTC Memo free?
OTC Memo is free to download, with no in-app purchases.
Do NerdTrack or OTC Memo have ads?
Neither NerdTrack nor OTC Memo shows ads.
Which is updated more often, NerdTrack or OTC Memo?
NerdTrack ships an update every 2 months, and OTC Memo weekly. Most recently, NerdTrack was updated on October 25, 2026 and OTC Memo on October 25, 2026.

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