Simpleffects vs KiraFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simpleffects
Explore a generative art toy with 60 unique visual effects controllable by touch. Enhance your photos with particle systems and diverse artistic styles for unique results.
- 60 visual effects
- Finger-controlled interface
- Effect modification options
- Particle effects
- Photo import from camera/library
- Generative art creation
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Simpleffects has 60 visual effects controlled entirely with your fingers. Each effect can be modified using options. Visual effects are very different in their nature. Some of them use particle effects. App supports photos taken by camera or from library. You can use them now and get very interesting results.
KiraFlow
Experience a calming and interactive art piece with flowing glitter particles that react to your device's tilt and touch. Enjoy a variety of glitter types and soothing twinkle sound effects to relax and unwind.
- Flowing glitter particles
- Interactive tilt and touch controls
- Various glitter types (stars, gems, etc.)
- Twinkle sound effects
- Calming and sleep aid
- Particle-based fluid simulation
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‥∴‥∵ Healing Glitter App ∵‥∴‥ Glitter particles flow smoothly on the screen. Tilt and touch the device to enjoy the mysterious movement of particles like ameba or slime. You'll be healed just by looking. ∴ Various glitters ∴ Stars, galaxies, water bubbles, gems, lame, neon, flowers, sand, dot, etc... (Planned to increase in the future) ∴ Twinkle sound effect ∴ A sparkling sound will be heard as the particles move. Please enjoy it with earphones. ∴ Invite a sleep ∴ Watching the smooth movements will calm your mind. It's also perfect for calming down for a while before going to sleep. ∴ For children who like glitter ∴ This app was created to please my daughter (4 years old) who loves princesses and glitter. The mysterious movement of glitter particles will be of interest to children. ・This app is an interactive art work that uses particle-based fluid simulation. ・No need to contact me to introduce this app on your media. News and support: Twitter (@m_hakozaki)
Screenshots
Verdict
The clearest difference is ads: Simpleffects at none against KiraFlow's shown. Simpleffects also leads on update cadence (every 8 days vs every 2 months) and review sentiment (94% vs 78%). On price, rating, ratings volume 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
Both are free to download. Simpleffects sells 5 one-off in-app purchases and KiraFlow sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Simpleffects against 4.6 for KiraFlow. Both are backed by a comparable volume of ratings — 320 and 326 respectively. Written reviews are what separate them: 94% of Simpleffects's written reviews are positive against 78% of KiraFlow's.
Simpleffects ships an update every 8 days, KiraFlow every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Simpleffects | KiraFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (320 ratings) — better | 4.6 (326 ratings) |
| Positive reviews | 93.9% of reviews — better | 78.2% of reviews |
| Number of ratings | 320 | 326 — better |
| Update frequency | Every 8 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 56 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Pawel Delimata | Masataka Hakozaki |
Customer experience
Simpleffects
KiraFlow
User reviews
Simpleffects
From 320 App Store ratingsWhat we love
- 🎨 Generative art toy
- 😌 Highly satisfying
- ✨ Mesmerizing visuals
- 🧘♀️ Calming and relaxing
- 🧠 Great for autism/ADHD
Room to improve
- 🎶 No music
- 😞 Not always calming
KiraFlow
From 326 App Store ratingsWhat we love
- ✨ Beautiful visuals
- 😌 Relaxing and calming
- 🤩 Mesmerizing and satisfying
- 🎶 Pleasant sounds/ASMR
- 👍 Easy to use
Room to improve
- 😩 Too many ads
- 💰 Expensive full version/packs
- 🐌 Slow glitter movement (for some)
- 🚫 Can't save work
- ❌ Laggy performance (for some)
Bugs and requests
Simpleffects
Reported bugs
1 issue- Forced review prompt
Requested features
4 requests- Ability to apply effects to photos
- Smaller preview boxes for faster scrolling
- Vector format output
- Slower ambient music option
KiraFlow
Reported bugs
3 issues- No sound issue
- App kicks out on startup
- Not received money taken immediately
Requested features
12 requests- Option to adjust glitter speed
- More sound options or sound customization
- Ability to save creations/screenshots
- More free glitter color options
- Option to create custom glitter colors/gradients
Show 7 moreShow fewer
- Different modes or themes (e.g., glitter on a table)
- Option to set as wallpaper/lock screen
- Option to react to music
- Ability to select multiple fluids simultaneously
- More dark backgrounds or background color adjustment
- Option to adjust glitter amount
- Add clock or pomodoro timer functionality
In-app purchases
Simpleffects
- No Ads$2.99
- Coffee tip$3.99
- Burger tip$4.99
Show 2 moreShow fewer
- Fuel tip$7.99
- Rent tip$10.99
KiraFlow
- PACK 001 "TINY"$0.99
- PACK 003 "LAME"$0.99
- PACK 004 "GALAXY"$0.99
Show 11 moreShow fewer
- PACK 005 "PHOTON"$0.99
- PACK 006 "GEM"$0.99
- PACK 007 "BLOOM"$0.99
- PACK 010 "DOT"$0.99
- PACK 011 "NEON"$0.99
- PACK 015 "RAINBOW"$0.99
- PACK 017 "STAR II"$0.99
- PACK 013 "BUBBLE"$0.99
- PACK 008 "HALF"$0.99
- ADS REMOVAL$1.99
- COMPLETE PACK$6.99
