Comparison

iMSO vs ArchFlowy

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

Head to head
About

iMSO

Transform your mobile device into a powerful mixed-signal oscilloscope. Analyze analog and digital signals with intuitive controls and advanced measurement features. A demo mode is available for free, with hardware required for full functionality.

Highlights
  • Mixed-signal oscilloscope
  • Analog and digital signal analysis
  • Simulated wave display
  • Cursors with measurements
  • Direct signal measurements
  • Analog and digital triggering
Features
Read full description

Oscilloscope your phone, touch or tablet! iMSO allows you to analyze 2 analog and up to 4 digital signals using the iMSO-204 mixed signal oscilloscope hardware. Although demo mode is available for free with this download, hardware must be purchased to fully enable the product. - It's the first mixed signal oscilloscope available in the app store (50MSPS / 5MHz) - Easiest, most intuitive scope you’ll ever use - Preferred scope for the next generation of inventors Software demo mode includes: - Simulated wave display (sine, square, sawtooth, and triangular) - Cursors w/ measurements - Direct signal measurements - Analog triggering - Run / Stop / Single mode Hardware mode includes: - Analog triggering - Digital triggering - Cursors w/ measurements - Direct signal measurements - 1x or 10x probe setting - Run / STOP / Single mode Hardware works with the following devices: - iPad mini 3 - iPad mini 2 - iPad mini - iPad Air 2 - iPad Air - iPad 4 - iPad 3 - iPad 2 - iPad - iPhone 6 Plus - iPhone 6 - iPhone 5C - iPhone 5S - iPhone 5 - iPhone 4S - iPhone 4 - iPhone 3GS - iPod touch [3rd (32GB only), 4th and 5th generation)

About

ArchFlowy

Features
Read full description

Design ERDs Anywhere — Fast, Offline, and Effortless ArchFlowy is the smoothest way to create database diagrams on the go. Built mobile‑first, it gives you the power of a desktop‑class ERD tool right in your pocket — no internet required. Offline ERD Creation Work fully offline, anytime No accounts, no syncing, no waiting Your diagrams stay private and on your device Fast & Fluid Diagramming Instant node creation and linking Zero lag, even in large diagrams Smart snapping and clean auto‑layout Mobile‑First Experience Designed for touch from the ground up Natural gestures for pan, zoom, and edit Optimized UI for small and large screens Smooth Workflow Effortless editing with intuitive controls Quick access to tables, fields, and relationships Clean, minimal interface that stays out of your way Perfect For Designing schemas on the go Brainstorming system architecture Students, developers, and anyone mapping data models EULA: This app is governed by Apple’s Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iMSO4 screens
ArchFlowy3 screens

Verdict

The call

The clearest difference is in-app purchases: iMSO at none against ArchFlowy's 1. iMSO also leads on iOS requirement (11.0 vs 18.2). ArchFlowy's advantage is update cadence (every 2 weeks vs every 3 months). 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. ArchFlowy sells 1 in-app purchase, starting at $1.99 per month. iMSO asks for nothing beyond the download.

UpkeepUpdate frequency

iMSO ships an update every 3 months, ArchFlowy every 2 weeks. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
iMSO versus ArchFlowy: the parameters behind the verdict, then further details
ParameteriMSOArchFlowy
PriceFreeFree
Rating3.2 (6 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.2
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperOscium LLCTimmy Nguyen

In-app purchases

None

iMSO

No in-app purchases

1 purchases

ArchFlowy

Subscriptions1
  • Monthly Subscription7 Days trial$1.991 Month

Questions

Is iMSO free?
iMSO is free to download, with no in-app purchases.
Is ArchFlowy free?
ArchFlowy is free to download, with in-app purchases available.
Do iMSO or ArchFlowy have ads?
Neither iMSO nor ArchFlowy shows ads.
Which is updated more often, iMSO or ArchFlowy?
iMSO ships an update every 3 months, and ArchFlowy every 2 weeks. Most recently, iMSO was updated on September 19, 2026 and ArchFlowy on September 29, 2026.

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