Comparison

Deflection vs Streakly

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

Head to head
About

Deflection

Calculate structural behavior for beams, 2D trusses, and 2D frames. Visualize reaction forces, shear, bending moment, and deflection. Analyze internal stresses along the beam and cross-section.

Highlights
  • Beam, 2D truss, and 2D frame analysis
  • Graphical output of results
  • Internal shear and bending stress calculation
  • 2D frame and truss editor
  • Cross-section editor with automatic calculations
  • Built-in database and quick-start templates
Features
Read full description

Deflection is a powerful, versatile calculator for beams, 2D trusses, and 2D frames. The interface is simple and intuitive, and the graphical output is state-of-the-art. In addition to reaction, shear, bending moment, and deflection results, Deflection also computes internal shear and bending stress along the cross section and along the beam. 2D FRAME AND TRUSS EDITOR The 2D editor is seamlessly integrated with the beam editor. Draw arbitrary frame and truss structures and apply loads and constraints using the same simple interface as for beams. You can visualize results directly within the 2D editor, or you can select a beam and get additional insights. INTERNAL STRESSES Obtain internal bending and shear stress diagrams in addition to shear, bending, and deflection diagrams. The internal stresses can be visualized along the length of the beam as well as along the vertical axis of the cross section using the beam editor. CROSS SECTION EDITOR Edit built-in cross sections. Moment of inertia and area values are automatically calculated and applied to the rest of the beam calculations. MORE FEATURES • The built-in database contains more data for your reference and convenience. • Apply beam self-weight optionally • Unlimited design files • Quick-start templates CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.

About

Streakly

This minimalist habit tracker focuses on consistency with a visual heatmap to display your progress. It offers a clean interface, iCloud sync, and flexible scheduling without unnecessary complexity. Track daily or specific day habits and view your entire year's discipline at a glance.

Highlights
  • Visual heatmap progress display
  • Clean, minimalist interface
  • iCloud sync across devices
  • Flexible habit scheduling
  • Interactive home screen widgets
  • No account required
Features
Read full description

Don't Break the Chain. Build better habits without the clutter. Streakly is the minimalist habit tracker designed for visual people who want to focus on one thing: Consistency. Inspired by the "Seinfeld Strategy" and contribution graphs, Streakly visualizes your progress as a beautiful heatmap. See your entire year of discipline at a glance, fill your grid, and keep the momentum going. WHY STREAKLY? Most habit trackers are too complex. They have too many charts, notifications, and features you don't use. Streakly brings it back to basics. It is a quiet place to mark your progress and feel good about your day. # VISUAL MOMENTUM - The Heatmap See your habits as a stunning "Year in Pixels" grid. The more consistent you are, the brighter your streak shines. - Weekly & Monthly Views Zoom in to focus on this week, or zoom out to see your yearly trend. - Beautiful Aesthetics Clean lines, satisfying haptics, and a design that looks great in Light or Dark mode. # PRIVATE & SECURE - iCloud Sync (CloudKit) Your data syncs seamlessly across your iPhone and iPad using your own private iCloud account. - Privacy First We don't see your data. It stays on your device and your Apple ID. - No Accounts: No sign-up required. Just download and start tracking. # POWERFUL SIMPLICITY - Interactive Widgets: Check off habits directly from your Home Screen. - Flexible Schedules: Track daily habits or set specific days (e.g., "Gym on Mon/Wed/Fri"). - Unlimited History: Look back at years of progress. # PAY ONCE, TRACK FOREVER We hate subscriptions for simple tools too. - No Monthly Fees. - No Ads. - One Lifetime Purchase. Get Streakly today and start filling your grid. --- Terms of Use: https://streakly.app/terms Privacy Policy: https://streakly.app/privacy-policy --- Connect with us Email: contact@streakly.app Website: https://streakly.app Twitter: twitter.com/UseStreakly ---

Screenshots

Deflection4 screens
Streakly4 screens

Verdict

The call

The clearest difference is price: Streakly at Free against Deflection's $4.99. Streakly also leads on device support (5 vs 3). Deflection's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 4 months). On rating, ratings volume, ads 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

Streakly is free to download; Deflection costs $4.99 up front. Streakly sells 1 one-off in-app purchase. Deflection asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Deflection against 4.7 for Streakly. Both are backed by a comparable volume of ratings — 115 and 58 respectively. Written reviews are what separate them: 74% of Deflection's written reviews are positive against 60% of Streakly's.

UpkeepUpdate frequency

Deflection ships an update every 6 weeks, Streakly every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Deflection versus Streakly: the parameters behind the verdict, then further details
ParameterDeflectionStreakly
Price$4.99Free — better
Rating4.6 (115 ratings)4.7 (58 ratings) — better
Positive reviews73.6% of reviews — better60.0% of reviews
Number of ratings115 — better58
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch, Vision Pro — better
Requires iOS15.0 — better16.2
Further details — not scored
Size160 MB18 MB
Age rating+44+
DeveloperBlue KetchepUnstatic Ltd Co

Customer experience

Deflection

All ratings115 ratings
Positive90.4%
Neutral4.3%
Negative5.2%
Written reviews91 reviews
Positive73.6%
Neutral8.8%
Negative17.6%

Streakly

All ratings58 ratings
Positive91.4%
Neutral1.7%
Negative6.9%
Written reviews30 reviews
Positive60.0%
Neutral3.3%
Negative36.7%

In-app purchases

None

Deflection

No in-app purchases

1 purchases

Streakly

One-time1
  • Life-time Premium$14.99

Questions

Is Deflection free?
Deflection costs $4.99, with no in-app purchases.
Is Streakly free?
Streakly is free to download, with in-app purchases available.
Which has better reviews, Deflection or Streakly?
Streakly is rated higher. Deflection averages 4.6 out of 5 from 115 ratings, while Streakly averages 4.7 from 58 ratings.
Do Deflection or Streakly have ads?
Neither Deflection nor Streakly shows ads.
Which is updated more often, Deflection or Streakly?
Deflection ships an update every 6 weeks, and Streakly every 4 months. Most recently, Deflection was updated on October 23, 2026 and Streakly on October 24, 2026.

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