Comparison

iLogger vs DiagramFlow Studio

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

Head to head
About

iLogger

Log and record any activity with customizable entries. Track everything from fitness and finances to personal diaries and maintenance. Easily import, export, and search your data, with options for photos and voice memos.

Highlights
  • User-definable logs
  • Import/Export data
  • Powerful search and filtering
  • Support for various data types
  • Photo and voice memo attachments
  • Passcode protection
Features
Read full description

iLogger is the only app you will need to log and record all of your activities. If it happened, you can log it. User definable logs allow you to keep track of the events you want and how you want them. iLogger comes with sample logs to get you started quickly but you can set it up any way you desire to fit your needs. NOTE: The free version is fully functional but it limits you to 15 entries. A single one-time in-app purchase will remove the restriction on the number of entries you can enter. Here is a small list of things you can keep track of: • Food / Diet / Calories • Exercise / Fitness • Running / Jogging / Biking / Hiking • Car Maintenance • Gas Mileage • Consulting time / Work • Project construction • Trip Diary • Flight Log • Dive Log • Swim Log • Medical / Medication • Sleep / Dreams • Money • Ham Radio • Anything you want to keep track of Quickly import your existing logs directly from your computer. You can also export your logs from iLogger directly to your own computer or via email. Built-in backup and restore to/from your own computer ensures you always have a copy of your data. Quickly find your events using iLogger's powerful filtering, searching, and sorting capabilities. Data entry is made easy with autofill and quick copy. iLogger allows you to enter the following types of data: • Text • Note/Comment • Date • Time • Duration • Currency • Count • Numbers (Integer, Decimal) • Yes/No • Web Address • Email Address • Phone Number • Location (GPS, address, city, etc.) • Voice Memo • Calculated (use basic math on other attributes and values) • Lookup List (user defined list of values) Store up to 20 photos for each of your entries. Use existing photos or take a photo with the built-in camera. Share your data with others. Email logs to co-workers or friends and family. Other users of iLogger can import your shared logs directly simply by tapping a link in the email. Customize entry lists to display exactly the data you want to see. Apply colors to logs or individual entries to make them stand out. See a summary of the entry list you are viewing. Shows entry count and totals and averages of your data. Generate a report of your logs viewable on your computer. Includes a print friendly version of your entries. Protect access to your data with a passcode. Keep others out of your data. The passcode feature functions just like the version built into your iOS device. The Tools menu gives you access to: • Data Transfer (Backup, Restore, Import, Export, Reports) • Lookup List maintenance • Settings (Display Options, Sorting Options) • Passcode Lock • Contact Information • Help Information Please visit https://www.maddysoft.com/ilogger for additional information and contact information for iLogger.

About

DiagramFlow Studio

Features
Read full description

Move from outline to diagram without losing the structure of your idea. DiagramFlow Studio is a local-first visual workspace for mind maps, flows, system sketches, and project outlines. BUILD VISUALLY • Create projects with connected nodes • Drag nodes around the canvas • Add, edit, and connect ideas • Apply an automatic layout when you want a clean starting point START FROM TEXT • Convert a Markdown outline into diagram nodes • Keep a readable outline alongside the visual canvas • Search and organize your project library SAVE AND DELIVER • Create named version snapshots • Export the complete project as Markdown, SVG, or JSON • Share only when you choose PRIVATE BY DEFAULT Projects and snapshots are stored locally. DiagramFlow Studio does not include advertising or cross-app tracking. The free version includes the core workflow. Pro is a one-time in-app purchase that unlocks unlimited projects and snapshots, complete exports, and future Pro features. Price and availability are shown by the App Store. The Pro screen includes Restore Purchases and a direct link to Apple’s refund-request process, including guidance for requests submitted within seven days. Eligibility and approval are determined by Apple.

Screenshots

iLogger4 screens
DiagramFlow Studio4 screens

Verdict

The call

The clearest difference is update cadence: DiagramFlow Studio at every 5 weeks against iLogger's every 2 months. iLogger's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. iLogger sells 1 one-off in-app purchase and DiagramFlow Studio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iLogger ships an update every 2 months, DiagramFlow Studio every 5 weeks. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 8 level
iLogger versus DiagramFlow Studio: the parameters behind the verdict, then further details
ParameteriLoggerDiagramFlow Studio
PriceFreeFree
Rating5.0 (9 ratings) — better—
Positive reviews95.1% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size4 MB5 MB
Age rating4+4+
DeveloperRick MaddyYu Shiung Jiang

In-app purchases

1 purchases

iLogger

One-time1
  • Unlimited Entries$3.99
1 purchases

DiagramFlow Studio

One-time1
  • 圖流 DiagramFlow Studio Pro 解鎖$2.99

Questions

Is iLogger free?
iLogger is free to download, with in-app purchases available.
Is DiagramFlow Studio free?
DiagramFlow Studio is free to download, with in-app purchases available.
Do iLogger or DiagramFlow Studio have ads?
Neither iLogger nor DiagramFlow Studio shows ads.
Which is updated more often, iLogger or DiagramFlow Studio?
iLogger ships an update every 2 months, and DiagramFlow Studio every 5 weeks. Most recently, iLogger was updated on October 13, 2026 and DiagramFlow Studio on October 18, 2026.

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