Comparison

Unredactor vs SEIMON

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

Head to head
About

Unredactor

This AI-powered tool allows you to redact words in your text and then reveal them. It uses a language model to predict and display the hidden words. Explore the capabilities of AI in text manipulation.

Highlights
  • Redact hidden words
  • AI-powered unredaction
  • Text prediction
  • Dictate text input
  • Experiment with AI models
Features
Read full description

Unredactor is a Manceps experiment. It was created by our Summer Interns, class of 2019. Type or dictate your text then flip the Redact switch, hide some words and click Unredact to see what the language model predicted. Manceps makes it easy for enterprise organizations to deploy AI models that put their data to work. Unredactor was created by: Tyler Gee Julian McOmie Hope Yim Alex Kari Manceps Mentors: Hobson Lane Christopher Thompson Al Kari Visit manceps.com for more details.

About

SEIMON

Features
Read full description

This voiceprint analysis app (SEIMON) compares two audio recordings to determine if they belong to the same speaker. Enjoy an experience like a real voiceprint analyst with its terminal-style interface. ------------------------------------------------------------ Main Features ------------------------------------------------------------ [Audio Data Collection] Records audio using the microphone and saves it to the evidence vault. Recorded audio can be played back and managed at any time. [Voiceprint Analysis] Compares two audio samples and determines if they belong to the same speaker using three algorithms: MFCC, DTW, and GMM. Results are displayed as MATCH / SIMILAR / NO MATCH. [Evidence Vault] Manages recorded audio files in a list. Playback, deletion, and export (Pro) are possible. [Voiceprint Spectrogram (Pro)] Visualization of voiceprints based on MFCC. Visually confirm the speaker's unique voice characteristics. [Fully On-Device Processing] No audio data is transmitted externally. All processing is completed within your iPhone. ------------------------------------------------------------ Advanced Appraiser License (Pro) ----------------------------------------------------------- • Unlimited storage of evidence audio • Unlimited voiceprint analysis • DTW/GMM detailed score display • Voiceprint spectrogram display • Audio file export • Audio import from files app Monthly and annual plans available. 7-day free trial included. ------------------------------------------------------------ What you can do with the free version ------------------------------------------------------------ • Audio recording and storage (up to 5 files) • Voiceprint analysis (up to 3 times a day) • Check MFCC basic score • Experience with demo audio ------------------------------------------------------------ Disclaimer ------------------------------------------------------------ This application is designed and provided for entertainment and hobby purposes only. The results of voiceprint analysis have no scientific or legal evidentiary value. It cannot be used for criminal investigation, law enforcement, judicial proceedings, or any other public or professional purpose. Terms of Use: https://coastandcorp.com/seimon/terms.html

Screenshots

Unredactor4 screens
SEIMON3 screens

Verdict

The call

The clearest difference is in-app purchases: Unredactor at none against SEIMON's 2. Unredactor also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (11.0 vs 17.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SEIMON sells 2 in-app purchases, starting at $3.99 per month. Unredactor asks for nothing beyond the download.

UpkeepUpdate frequency

Unredactor ships an update every 2 days, SEIMON every 3 weeks. Both last shipped on September 23, 2026.

Scorecard3 real differences · 7 level
Unredactor versus SEIMON: the parameters behind the verdict, then further details
ParameterUnredactorSEIMON
PriceFreeFree
Rating4.5 (8 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size13 MB5 MB
Age rating4+4+
DeveloperManceps, Inc.Takahiro Endo

In-app purchases

None

Unredactor

No in-app purchases

2 purchases

SEIMON

Subscriptions2
  • 上級鑑定士ライセンス(月額)7 Days trial$3.991 Month
  • 上級鑑定士ライセンス(年額)7 Days trial$29.991 Year

Questions

Is Unredactor free?
Unredactor is free to download, with no in-app purchases.
Is SEIMON free?
SEIMON is free to download, with in-app purchases available.
Do Unredactor or SEIMON have ads?
Neither Unredactor nor SEIMON shows ads.
Which is updated more often, Unredactor or SEIMON?
Unredactor ships an update every 2 days, and SEIMON every 3 weeks. Most recently, Unredactor was updated on September 23, 2026 and SEIMON on September 23, 2026.

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