Comparison

Micro.App vs InvisiblePic

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

Head to head
About

Micro.App

Features
Read full description

Micro.App is a microbiology revision app, bringing together concise revision notes, audio summaries, 7,903 MCQs and 621 image cards across 310 topics. Covers key areas of microbiology: β€’ Bacteriology, virology, infectious diseases and tropical medicine β€’ HIV and Clinical Virology β€’ Laboratory microbiology β€” organisms, diagnostics and identification techniques β€’ Clinical syndromes β€” infection presentations and causative agents β€’ Antimicrobials β€” mechanisms, resistance and therapeutic use

About

InvisiblePic

Features
Read full description

InvisiblePic lets you hide secret images inside ordinary photos using advanced steganography technology. Your hidden images become completely invisible to the naked eye. HIDE IN PLAIN SIGHT Embed private photos inside innocent-looking images. Send them anywhere β€” social media, messaging apps, email β€” and only you know there’s something hidden inside. HOW IT WORKS β€’ Select a cover image (the image others will see) β€’ Select your secret image (the one you want to hide) β€’ Optionally add password protection β€’ Save or share your encoded image The result looks exactly like your cover photo. No one will suspect it contains hidden content. MILITARY-GRADE SECURITY β€’ AES-256 encryption protects your hidden images β€’ Password protection adds an extra layer of security β€’ Even if someone knows an image contains hidden data, they can’t access it without your password COMPLETE PRIVACY β€’ All processing happens 100% on your device β€’ No cloud uploads, no servers, no accounts β€’ Your images never leave your phone β€’ No tracking, no analytics on your content EASY TO USE β€’ Simple 4-step hiding process β€’ One-tap reveal for encoded images β€’ Save directly to Photos or share anywhere β€’ Clean, intuitive dark interface PERFECT FOR β€’ Protecting private memories β€’ Secure photo sharing β€’ Digital privacy enthusiasts β€’ Anyone who values discretion TECHNICAL DETAILS β€’ Uses LSB (Least Significant Bit) steganography β€’ Outputs lossless PNG format to preserve hidden data β€’ Supports high-resolution images β€’ CRC32 checksums ensure data integrity Download InvisiblePic and take control of your photo privacy today.

Screenshots

Micro.App4 screens
InvisiblePic4 screens

Verdict

The call

The clearest difference is price: Micro.App at Free against InvisiblePic's $0.99. Micro.App also leads on update cadence (every 6 days vs every 4 months). InvisiblePic's advantage is iOS requirement (17.6 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Micro.App is free to download; InvisiblePic costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Micro.App ships an update every 6 days, InvisiblePic every 4 months. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

Scorecard3 real differences Β· 3 level
Micro.App versus InvisiblePic: the parameters behind the verdict, then further details
ParameterMicro.AppInvisiblePic
PriceFree β€” better$0.99
Update frequencyEvery 6 days β€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad β€” betteriPhone
Requires iOS26.017.6 β€” better
Further details β€” not scored
Size204 MB5 MB
Age rating17+4+
DeveloperLuke Blagdon SnellS Boersma

In-app purchases

None

Micro.App

No in-app purchases

None

InvisiblePic

No in-app purchases

Questions

Is Micro.App free?
Micro.App is free to download, with no in-app purchases.
Is InvisiblePic free?
InvisiblePic costs $0.99, with no in-app purchases.
Do Micro.App or InvisiblePic have ads?
Neither Micro.App nor InvisiblePic shows ads.
Which is updated more often, Micro.App or InvisiblePic?
Micro.App ships an update every 6 days, and InvisiblePic every 4 months. Most recently, Micro.App was updated on October 12, 2026 and InvisiblePic on October 28, 2026.

Other comparisons