Comparison

ArchFlowy vs Tertiary NotePad

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

Head to head
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/

About

Tertiary NotePad

Features
Read full description

NotePad is a clean, native iPad note-taking app built for Apple Pencil. It feels like a paper notebook with the power of digital ink. - Handwriting with pressure and tilt, low latency, and palm rejection - the Pencil draws while a finger scrolls and two fingers zoom. - GoodNotes-style tool bar: pen, highlighter, erasers, color dropdown and widths. - White paper or blackboard templates, applied across the whole notebook. - Shapes and flowcharts (process, decision, start/end, connectors) with editable vector overlays; connectors re-route when you move a node. - Type directly into sticky notes and flowchart nodes (multi-line, with background colors). - Lasso to move, delete or copy multiple strokes; recolor and edit shapes. - Import PDFs and annotate them; export pages or whole notebooks to PDF/PNG/JPG. - Organize with nested notebooks and tags, and search inside your handwriting. - Record voice memos per notebook. - Everything syncs across your devices with iCloud. Powered by Tertiary Infotech Academy Pte Ltd.

Screenshots

ArchFlowy3 screens
Tertiary NotePad2 screens

Verdict

The call

The clearest difference is in-app purchases: Tertiary NotePad at none against ArchFlowy's 1. Tertiary NotePad also leads on update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement 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. Tertiary NotePad asks for nothing beyond the download.

UpkeepUpdate frequency

ArchFlowy ships an update every 2 weeks, Tertiary NotePad daily. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 4 level
ArchFlowy versus Tertiary NotePad: the parameters behind the verdict, then further details
ParameterArchFlowyTertiary NotePad
PriceFreeFree
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.218.0 — better
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperTimmy NguyenAlfred Ang

In-app purchases

1 purchases

ArchFlowy

Subscriptions1
  • Monthly Subscription7 Days trial$1.991 Month
None

Tertiary NotePad

No in-app purchases

Questions

Is ArchFlowy free?
ArchFlowy is free to download, with in-app purchases available.
Is Tertiary NotePad free?
Tertiary NotePad is free to download, with no in-app purchases.
Do ArchFlowy or Tertiary NotePad have ads?
Neither ArchFlowy nor Tertiary NotePad shows ads.
Which is updated more often, ArchFlowy or Tertiary NotePad?
ArchFlowy ships an update every 2 weeks, and Tertiary NotePad daily. Most recently, ArchFlowy was updated on September 29, 2026 and Tertiary NotePad on October 6, 2026.

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