Comparison

StillFlow vs Boltz

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

Head to head
About

StillFlow

Features
Read full description

## Overview (Main Description) StillFlow is a creative camera app that turns your photos into “moving visuals” by layering geometric particles that drift, flow, and gather like living creatures. With face detection, particles can be set to avoid or attract faces so you can highlight your subject without breaking the mood of the original photo. ### Key Features - Photo import and normalization - Supports JPEG/HEIC. Automatically fixes orientation, normalizes to sRGB, and safely downsamples large images. - Face-aware particle behavior - Uses Vision to detect faces and lets particles avoid faces, gather around them, or mix both behaviors. - Radius, strength, and spawn ratio are adjustable with intuitive sliders. - Rich particle expressions - Multiple shapes (circles, boxes, capsules, triangles, diamonds, etc.) and patterns (check, stripes, dots, gradient). - Control particle count, density, brightness, additive blending, zoom, and motion chaos in real time. - Monochrome particles toggle for clean, high-contrast looks. - Background controls - Layer animated gradients over your photo and tweak mode (linear / radial / angular), intensity, speed, and saturation. - Optional photo monochrome toggle to desaturate the background image itself. - Capture modes - Single: Save the current frame as an image. - Burst: Capture multiple frames and pick your favorites from a grid with full-screen preview. - Video: Record full-screen video matching the preview, exporting in 720p (Free) or 1080p-class (Pro). - Modern UI - Minimal bottom sheet opened from the bottom-left trigger, with paged “Basic” and “Face” tabs. - Sliders and toggles are arranged near the bottom for easy reach and a clean, monochrome look. ## Who Is It For? - Creators and social media users who want to turn photos into moving designs. - Anyone interested in generative-style expressions that still highlight the subject. - Users who want high-quality previews and exports without a heavy editing workflow. ## Free vs Pro (In-App Purchase) - Free - Background gradient and monochrome particles are **preview-only** and are not applied to saved stills, bursts, or recordings. - A watermark is added to exported photos and videos. - Recording is limited to 720p-class and up to 15 seconds. Burst is limited to 5 frames. - Particle limits: Max=220, density up to 0.6. - Pro (non-consumable in-app purchase) - Background gradient and monochrome particles are applied to exports as well as preview, with **no watermark**. - Recording time limit is removed, enabling longer videos in 1080p-class resolution. - Particle limits are unlocked up to Max=400 and density up to 1.0 for richer, denser visuals. ## Quality & Performance - GPU-driven rendering keeps both preview and recording responsive, with GPU-based blits to avoid black frames or bars. - Auto LOD targets roughly 30fps on modern devices by adjusting particle count in real time.

About

Boltz

Transform any photo into a captivating 10-second strobe video. Select images from your camera roll or capture new moments to create visually striking, neon-enhanced animations. Add futuristic filters to make your memories pop.

Highlights
  • Strobe video creation
  • Photo selection from camera roll
  • In-app photo capture
  • Futuristic color filters
  • 10-second video output
Features
Read full description

Boltz produces beautiful strobe art from any photo. Boltz takes any image and transforms it into a 10 second strobe video, perfect for shocking friends! Features: • Choose a photo - select any photo from your camera roll and turn it into a stunning video that shocks the world. • Take a photo - capture any moment and turn it into a strobe party. • Filters - two futuristic, color-enhancing filters that transform ordinary memories into neon dreams.

Screenshots

StillFlow4 screens
Boltz1 screens

Verdict

The call

The clearest difference is in-app purchases: Boltz at none against StillFlow's 1. StillFlow's advantage is ads (none vs shown) and iOS requirement (16.0 vs 26.2). On price 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. StillFlow sells 1 one-off in-app purchase. Boltz asks for nothing beyond the download.

Scorecard3 real differences · 7 level
StillFlow versus Boltz: the parameters behind the verdict, then further details
ParameterStillFlowBoltz
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Monthly
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better26.2
Further details — not scored
Size5 MB15 MB
Age rating4+4+
Developeryoshihiro kuniharaLogan Voss

In-app purchases

1 purchases

StillFlow

One-time1
  • StillFlow Pro$4.99
None

Boltz

No in-app purchases

Questions

Is StillFlow free?
StillFlow is free to download, with in-app purchases available.
Is Boltz free?
Boltz is free to download, with no in-app purchases.
Do StillFlow or Boltz have ads?
Boltz shows ads; StillFlow does not.

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