Comparison

SymPlayer vs Kosoren Camera

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

Head to head
About

SymPlayer

Learn movements by watching videos mirrored, as if looking in a real mirror. Adjust playback speed, loop specific sections, and use guide lines to perfect your technique. Save flipped or rotated videos from your camera roll.

Highlights
  • Mirrored video playback
  • Adjustable playback speed
  • Loop specific video ranges
  • Show/hide guide lines
  • Zoom and fit screen
  • Play from cloud storage
Features
Read full description

Master Professional Moves with Mirrored Playback! This app lets you play videos flipped left-to-right, making it easier to mimic movements without getting confused about direction. Just follow what you see as if looking in a mirror! You can also flip or rotate videos from your camera roll and save them as new files. Perfect for people who: - Need to learn idol group dances for a wedding or performance - Want to copy professional dance moves - Want to study a pro athlete’s form (like pitching) This app is made for anyone who wants to learn by watching and repeating. Give it a try — it’s free! [Features] ■ Adjustable Playback Speed Freely change video speed — slow motion or double speed are both supported. You can also adjust speed in 5-step increments, as requested by users. Perfect for dance practice, form checks, and more. Caution: Due to iOS limitations, available speeds are limited to 0.5, 0.666..., 0.8, 1.0, 1.25, 1.5, and 2.0. SymPlayer’s speed display is approximate and for reference only. ■ Loop Specific Ranges Set custom start and end points to loop only the section you want to repeat. Ideal for practicing tricky parts like guitar fingering or a swing. ■ Show/Hide Guide Lines Display vertical and horizontal guides over the video. Useful for checking positions in formation dances or comparing symmetry. ■ Zoom & Fit Screen Pinch to zoom in/out. Double-tap to fit the video to your screen. Watch movements in detail or full view — your choice. ■ Play from Google Drive & Dropbox Play videos stored in Google Drive or Dropbox. Mark favorites for offline playback (requires ad viewing). You can also play from a shared video URL. Note: Long videos may take time to load. A shared link is required for access. ■ Tag Your Videos Organize your videos with tags. You can assign multiple tags to a single video for better group management. [About in-app purchases] Please read before purchasing in-app purchases. After purchase, no matter what reason, refund can not be canceled. If you purchase, please confirm the above contents and purchase only if agreed. [About purchasing automatic subscription] As with music players, sound will be able to play even in the background. Also, all ads will be removed during the automatic subscription period. When purchasing, please confirm the following "Terms of service" and "Privacy policy" and purchase only if you agree. Terms of service) https://faboll.tattin.com/terms/symplayer/terms.html Privacy policy) https://faboll.tattin.com/terms/symplayer/privacy.html [Duration and amount of automatic subscription] - Extension 1 month ¥100(JPY) - Extension 3 month ¥280(JPY) - Extension 12 months ¥1000(JPY) [About auto-renewable] Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Payment will be charged to iTunes Account at confirmation of purchase. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. [About the Dance Video] The dance video featured in the App Store preview was graciously provided by SUI Kagura. SUI Kagura — A Super Synchronized Dance Duo with Sincerity to Music — Formed in 2022 by choreographer Upolu and former idol Sayakichi Hanashiro, SUI Kagura is dedicated to their motto: “Sincere to the music.” They create performances that amplify sound and lyrics, shared seamlessly through stage and video. https://www.dignitive.jp/suikagura

About

Kosoren Camera

Record and review your movements with adjustable video delay. This tool helps athletes and dancers perfect their form through repetitive practice and immediate feedback.

Highlights
  • Adjustable video delay recording
  • Repetitive training aid
  • Form and action review
  • Ideal for sports and dance
  • Quick and easy feedback
Features
Read full description

To provide a form correcting app which enables a training person for any sports to make repetitive training in an ideal form. It is a camera that can reproduce with delay of arbitrary number of seconds while shooting video. You can check your form and action quickly and easily, such as sports and dance.

Screenshots

SymPlayer4 screens
Kosoren Camera3 screens

Verdict

The call

The clearest difference is update cadence: SymPlayer at every 10 days against Kosoren Camera's every 5 weeks. SymPlayer also leads on review sentiment (91% vs 75%). Kosoren Camera's advantage is iOS requirement (12.0 vs 17.5). On price, ads, in-app purchases and monetization model 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. SymPlayer sells 3 in-app purchases, starting at $0.99 per month and Kosoren Camera sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SymPlayer ships an update every 10 days, Kosoren Camera every 5 weeks. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
SymPlayer versus Kosoren Camera: the parameters behind the verdict, then further details
ParameterSymPlayerKosoren Camera
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews91.3% of reviews — better75.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 10 days — betterEvery 5 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.512.0 — better
Further details — not scored
Size68 MB13 MB
Age rating4+4+
DeveloperMasakiyo Tachikawasa0001.industry

Customer experience

SymPlayer

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews23 reviews
Positive91.3%
Neutral4.3%
Negative4.3%

Kosoren Camera

Written reviews12 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

3 purchases

SymPlayer

Subscriptions3
  • Extension - 1 month$0.991 Month
  • Extension - 3 months$2.493 Months
  • Extension - 12 months$8.991 Year
1 purchases

Kosoren Camera

One-time1
  • remove ads$1.99

Questions

Is SymPlayer free?
SymPlayer is free to download, with in-app purchases available.
Is Kosoren Camera free?
Kosoren Camera is free to download, with in-app purchases available.
Do SymPlayer or Kosoren Camera have ads?
Both SymPlayer and Kosoren Camera show ads.
Which is updated more often, SymPlayer or Kosoren Camera?
SymPlayer ships an update every 10 days, and Kosoren Camera every 5 weeks. Most recently, SymPlayer was updated on October 11, 2026 and Kosoren Camera on October 13, 2026.

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