Comparison

Lapse HD/R vs Slow Fast Reverse Motion Video

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

Head to head
About

Lapse HD/R

Capture stunning time-lapse videos in true HDR and 4K HD resolution. This app utilizes patented technology to expand dynamic range, reduce flickering and ghosting, and process video in real-time on your device. Enhance your videos with built-in processing modes and optional soundtracks.

Highlights
  • True HDR time-lapse video
  • 4K HD resolution
  • Up to 5 EV dynamic range expansion
  • Multi-stage deflickering
  • Deghosting
  • Real-time GPU processing
  • Quicktime format export
  • Built-in processing modes
Features
Read full description

"To have all this capability in a smartphone is a wonder"—TUAW Record timelapse video in true HDR and 4K HD resolution on your iPhone! Watch the demo video and a before/after video at http://www.thaliacam.com/lapse/ios.html How does it work? ---------------- The patented HD/R™ technology in Thalia® Lapse™ HD/R™ takes several different exposures of the same scene for each video frame and works magic (technical term: tonemapping) to turn them into a video stream reflecting the scene’s dynamic range. * Up to 5 EV values of dynamic range expansion, depending on the scene shot * Multi-stage deflickering avoids the flickering artifacts that often occur when stitching together time-lapse video from photos * Deghosting avoids ghosting artifacts from moving objects * Processing on the iPhone’s GPU calculates tonemapped video in real time, preserving local contrast on scenes with strong dynamic range * Stores high-quality movies in Quicktime format with up to 2060p resolution * Amazing built-in processing modes for a subdued effect, adding punch to the video, and artistic effect * If desired, adds a soundtrack from your iTunes library to the video User note -------- Time-lapse videography by its very nature demands a certain patience from the videographer. You will need some sort of contraption to keep your phone pointing steadily in one direction while you are shooting the video. It's certainly possible to jury-rig this using a book or such, but we strongly recommend using a tripod. See http://www.thaliacam.com/lapse/ios.html for details. US Patent 9,955,084. Patents pending.

About

Slow Fast Reverse Motion Video

Easily transform your videos by applying slow motion, fast motion, or reverse effects. Enhance your clips with filters and save them in full HD without watermarks.

Highlights
  • Create slow motion videos
  • Create fast motion videos
  • Convert videos to reverse motion
  • Apply video filters and effects
  • Save videos without watermark
  • Create full HD videos
Features
Read full description

Edit your videos to create Slow Videos, Fast Videos or Reverse Videos at one place. App features : Slow Motion Videos: you can create slow motion videos instantly of your existing videos in your mobile. Apply the slow motion effect to any of your videos with slider. Fast Motion Videos: you can create fast motion videos instantly of your existing videos in your mobile. Apply the fast motion effect to any of your videos with slider value. Reverse Videos: Take any video from your mobile gallery and convert it to reverse video. See the magic of reversed video. You can create wonders with reverse video. General video editing features : - Edit your videos with slow, fast and reverse effect. - Apply video filters and effects. - Save video directly without watermark. - Create full HD videos. SUBSCRIPTION: You can subscribe to premium features, choosing from the following plans: – 1 Month – 12 months - One Time Purchase (Lifetime Access) The subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. Payment will be charged to your iTunes account at confirmation of purchase. Account will be charged for renewal within 24 hours of the end of the current period, and the cost of the renewal will be provided. Subscriptions may be managed by the user. Auto-renewal may be turned off by going to the user’s Account Settings after purchase. No cancellation of the current subscription is allowed during active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. TERMS OF USE: https://rmcreativeapps.wordpress.com/2020/01/02/terms-of-use/ PRIVACY POLICY: https://rmcreativeapps.wordpress.com/2018/10/19/privacy-policy/

Screenshots

Lapse HD/R1 screens
Slow Fast Reverse Motion Video4 screens

Verdict

The call

The clearest difference is price: Slow Fast Reverse Motion Video at Free against Lapse HD/R's $2.99. Slow Fast Reverse Motion Video also leads on rating (3.8 vs 3.0) and ratings volume (11 vs 2). Lapse HD/R's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence, device support 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

Slow Fast Reverse Motion Video is free to download; Lapse HD/R costs $2.99 up front. Slow Fast Reverse Motion Video sells 4 in-app purchases, starting at $0.99 per 7 days. Lapse HD/R asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Slow Fast Reverse Motion Video holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Slow Fast Reverse Motion Video has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 42% of Lapse HD/R's written reviews are positive against 50% of Slow Fast Reverse Motion Video's.

UpkeepUpdate frequency

Lapse HD/R ships an update every 10 months, Slow Fast Reverse Motion Video every 16 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
Lapse HD/R versus Slow Fast Reverse Motion Video: the parameters behind the verdict, then further details
ParameterLapse HD/RSlow Fast Reverse Motion Video
Price$2.99Free — better
Rating3.0 (2 ratings)3.8 (11 ratings) — better
Positive reviews41.7% of reviews50.0% of reviews — better
Number of ratings211 — better
Update frequencyEvery 10 months — betterEvery 16 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size1 MB62 MB
Age rating4+4+
DeveloperPromanthan LLCRajneesh Mishra

Customer experience

Lapse HD/R

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews12 reviews
Positive41.7%
Neutral0.0%
Negative58.3%

Slow Fast Reverse Motion Video

All ratings10 ratings
Positive60.0%
Neutral10.0%
Negative30.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Lapse HD/R

No in-app purchases

4 purchases

Slow Fast Reverse Motion Video

Subscriptions3
  • Weekly Subscription3 Days trial$0.997 Days
  • Monthly Subscription$2.991 Month
  • Yearly Subscription$5.991 Year
One-time1
  • One Time Purchase$7.99

Questions

Is Lapse HD/R free?
Lapse HD/R costs $2.99, with no in-app purchases.
Is Slow Fast Reverse Motion Video free?
Slow Fast Reverse Motion Video is free to download, with in-app purchases available.
Which has better reviews, Lapse HD/R or Slow Fast Reverse Motion Video?
Slow Fast Reverse Motion Video is rated higher. Lapse HD/R averages 3.0 out of 5 from 2 ratings, while Slow Fast Reverse Motion Video averages 3.8 from 11 ratings.
Do Lapse HD/R or Slow Fast Reverse Motion Video have ads?
Slow Fast Reverse Motion Video shows ads; Lapse HD/R does not.
Which is updated more often, Lapse HD/R or Slow Fast Reverse Motion Video?
Lapse HD/R ships an update every 10 months, and Slow Fast Reverse Motion Video every 16 months. Most recently, Lapse HD/R was updated on November 1, 2026 and Slow Fast Reverse Motion Video on October 24, 2026.

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