Comparison

Deflection Lite vs SwiftoDo for todo.txt

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

Head to head
About

Deflection Lite

This app provides interactive and precise structural beam analysis. Easily visualize beam bending by dragging loads and supports, and calculate key engineering results like reactions, shear force, and bending moment.

Highlights
  • Interactive beam bending visualization
  • Calculate reactions, shear force, and bending moment
  • Built-in cross-section databases
  • Unlimited loads and supports
  • Export design to shareable permalink
  • Metric and standard units
Features
Read full description

Deflection Lite is the most interactive, fast, and precise app available for structural beam analysis. Simply drag loads and supports on the beam, and see how it bends. RESULTS Calculate reactions, shear force, bending moment, and beam deflection quickly and easily. CROSS SECTION DATABASES Specify elastic modulus and moment of inertia values directly, or find common shapes and materials using the built-in databases, which include most international steel sections, as well as some aluminum and wood shapes. UNLIMITED LOADS AND SUPPORTS Simply drag any load or support on the beam. • Concentrated point loads • Distributed loads • Moment loads • Simple supports • Fixed supports • Fixed hinges • Floating Gerber hinges OTHER FEATURES • Export your design to a permalink that you can share. • Automatic detection of local maxima and minima in diagrams • Metric and standard measurement units CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.

About

SwiftoDo for todo.txt

Manage your tasks with a powerful and modern application designed for the todo.txt file format. Sync your lists via Dropbox or the Files app, and leverage advanced features like recurring tasks and custom sorting. Enjoy a customizable interface and seamless integration with iOS.

Highlights
  • Full todo.txt format support
  • Dropbox and Files app sync
  • Archiving completed tasks
  • Import from Reminders
  • Customizable task list styles
  • Advanced sorting and filtering
  • Hardware keyboard shortcuts
Read full description

SwiftoDo is a modern, powerful todo.txt app for iOS. It is a task list built specifically for the todo.txt file format, and allows you work with your existing todo.txt files via Dropbox or any data provider that integrates with the iOS 11+ Files app. # FEATURES - Full support for the todo.txt file format - Dropbox sync - Archiving completed tasks to done.txt - Import tasks from Reminders ## Supported Todo.txt Format Extensions - Due date tags (due:) - Threshold date tags (t:) - Recurring tasks (rec:+1w) - Hidden tasks (h:1) - Retain priority after completion (optional; two ways) ## User Interface - Four task list styles to customize how you view your tasks - Full file text editing mode, for when you need it - Numerous dark and light themes - Single or multiple task entry for new tasks - One-touch edits to change priority, due date, etc. - Select and edit multiple tasks from the task list with one-touch edits - Pickers for inserting priority, projects, contexts, etc. - Numerous sort presets, with grouping - Powerful filtering capabilities - Full-text search - Undo/redo - Hardware keyboard shortcuts - Slide-over menu to open URLs contained in the task text - Option to set a default priority on new tasks ## iOS 10+ Integration - Universal app for iPhone and iPad - Live filter split view in landscape on iPad, iPhone 6/6S/7 Plus - Slide-over and split-screen multitasking on iPad (great for having tasks side by side with your favorite note-taking app) - 3D Touch peek & pop and home screen quick actions - Core Spotlight integration - URL scheme with x-callback-url support # ARE YOU NEW TO THE TODO.TXT FORMAT? SEE WHAT IT OFFERS: ## A task list that *you* control Your task list is a plain text file, not some proprietary format owned by a company or locked to a specific application. ## A simple and timeless format Plain text is the simplest file format there is. It will always be accessible, by some kind of application, forever. ## Few rules to learn Learn only a few simple formatting rules (which SwiftoDo will take care of for you) to indicate task priority, task completion, and so on. ## A GTD-ready system The todo.txt format was built with Getting Things Done in mind. It supports projects (which being with “+”) and contexts (which begin with a “@“). ## Use alongside any app on any platform With Dropbox or Files app (iOS 11+ only) sync enabled, you can sync your task list with any app on any platform.

Screenshots

Deflection Lite4 screens
SwiftoDo for todo.txt4 screens

Verdict

The call

Deflection Lite and SwiftoDo for todo.txt both sit at 4.5 stars, but that hides the real split: 82% of SwiftoDo for todo.txt's written reviews are positive against 44% of Deflection Lite's. SwiftoDo for todo.txt also leads on update cadence (every 5 weeks vs every 3 months) and ratings volume (278 vs 46). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SwiftoDo for todo.txt holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: SwiftoDo for todo.txt has 278 ratings behind it against 46, so its average is the more settled of the two. Written reviews point the same way: 44% of Deflection Lite's written reviews are positive against 82% of SwiftoDo for todo.txt's.

UpkeepUpdate frequency

Deflection Lite ships an update every 3 months, SwiftoDo for todo.txt every 5 weeks. Both last shipped on September 17, 2026.

Scorecard4 real differences · 6 level
Deflection Lite versus SwiftoDo for todo.txt: the parameters behind the verdict, then further details
ParameterDeflection LiteSwiftoDo for todo.txt
PriceFreeFree
Rating4.5 (46 ratings)4.7 (278 ratings) — better
Positive reviews44.4% of reviews82.4% of reviews — better
Number of ratings46278 — better
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size108 MB20 MB
Age rating4+4+
DeveloperBlue KetchepMichael Descy

Customer experience

Deflection Lite

All ratings46 ratings
Positive82.6%
Neutral10.9%
Negative6.5%
Written reviews9 reviews
Positive44.4%
Neutral0.0%
Negative55.6%

SwiftoDo for todo.txt

All ratings278 ratings
Positive93.9%
Neutral2.5%
Negative3.6%
Written reviews108 reviews
Positive82.4%
Neutral8.3%
Negative9.3%

Bugs and requests

Deflection Lite

Not enough reviews yet to summarise bugs or requests.

SwiftoDo for todo.txt

Reported bugs

4 issues
  • Crashes when opening the app after a sync
  • Inline date picker causing app crashes
  • Manual sort not working as expected
  • Sync issues leading to data loss

Requested features

5 requests
  • Multiple todo list support
  • Widgets and Apple Watch integration
  • Automatic dark mode switching
  • Better sorting and filtering options
  • Improved reminders and due date handling

In-app purchases

None

Deflection Lite

No in-app purchases

None

SwiftoDo for todo.txt

No in-app purchases

Questions

Is Deflection Lite free?
Deflection Lite is free to download, with no in-app purchases.
Is SwiftoDo for todo.txt free?
SwiftoDo for todo.txt is free to download, with no in-app purchases.
Which has better reviews, Deflection Lite or SwiftoDo for todo.txt?
SwiftoDo for todo.txt is rated higher. Deflection Lite averages 4.5 out of 5 from 46 ratings, while SwiftoDo for todo.txt averages 4.7 from 278 ratings.
Do Deflection Lite or SwiftoDo for todo.txt have ads?
Neither Deflection Lite nor SwiftoDo for todo.txt shows ads.
Which is updated more often, Deflection Lite or SwiftoDo for todo.txt?
Deflection Lite ships an update every 3 months, and SwiftoDo for todo.txt every 5 weeks. Most recently, Deflection Lite was updated on September 17, 2026 and SwiftoDo for todo.txt on September 17, 2026.

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