Comparison

Onform vs ChalkTimer

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

Head to head
About

Onform

This app enables coaches to provide detailed video feedback and communicate effectively with athletes, both remotely and in person. It offers tools for analysis, markup, and direct messaging to streamline coaching and improve athlete performance.

Highlights
  • Video feedback with markup tools
  • Slow motion and comparison analysis
  • Voice-over and text messaging
  • 3D analysis for select sports
  • Organize athletes and teams
  • High-speed video recording
Features
Currently charting
Read full description

Onform is a mobile video coaching platform that helps coaches provide video feedback and communicate with athletes. With built-in individual and group communication tools, coaches can stay connected with remote and in-person athletes using voice-overs, messaging, and file/video sharing. Coach smarter, give athletes a better experience (athletes pay no fee to use the app with you), and get your time back. Expand your business with video coaching and manage more clients in less time. WHAT CAN YOU DO WITH ONFORM? COACH IN-PERSON AND REMOTE ATHLETES • Give in-person athletes instant visual feedback using slow motion, markup, and analysis tools they can review during or after a session. • Reach athletes wherever they are and generate new revenue through remote consultations and training. SHARE FEEDBACK • Use voice-over recording and markup tools to clearly highlight areas for improvement. • Use 3D golf analysis and skeleton tracking to visualize movement in new ways (requires iOS 18 or later). • Share video feedback privately or through broadcast messages so athletes can revisit your insights. CREATE ACCOUNTABILITY • Provide feedback without needing to be on a live call or in person. • Stay connected with athletes while traveling or between sessions. • Help athletes and teams stay accountable to the work required to improve. DRIVE EFFICIENCY • Organize teams and 1:1 interactions in one place. • Easily manage and communicate with hundreds of athletes. APP FEATURES • Compare two videos side by side or overlaid to analyze form and track improvement. • Record high-speed video from multiple angles at up to 240 FPS on supported devices, or capture video from external cameras. • Pause and resume recordings to capture multiple moments in a single video. • Auto-detect recordings for Golf, Baseball, and Softball, or use a Bluetooth camera trigger or the Onform Apple Watch app to control recording. • For golf, get 3D swing metrics and shot data from Garmin R10 and Full Swing KIT. • Use fine scrubbing, slow motion, and video markup tools for detailed analysis. • Record voice-overs and share them instantly. Instructor Cam lets you add video of yourself speaking for more personalized feedback. • Organize videos by athlete or team. Sort private and shared videos, and add titles and tags for easy search. • Automatically sync videos across your devices while Onform intelligently manages on-device storage. • Use 1:1 and group chat to exchange videos, share training information, and coordinate logistics. • Broadcast messages privately to athletes using Collections. • Save frequently used replies. • Use Pocket Radar and Stalker Radar as recording triggers. PRICING Simple pricing for athletes and coaches. Individuals can choose the Standard plan for $9.99/month or the fully featured Premium plan for $14.99/month. Coaches can choose from three tiers: • Coach Basic: $19.99/month • Coach Standard: $39.99/month • Coach Pro: $59.99/month, including unlimited clients Quarterly and yearly subscriptions are available at discounted rates. Payment will be charged to your Apple ID account at purchase confirmation. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Terms of Use: https://onform.com/terms-of-use/

About

ChalkTimer

This app provides precise timing for gymnastics warm-ups and competitions, adhering to USAG rules. It automates calculations and countdowns, offering visual and audio cues for seamless transitions. Designed for coaches and meet directors, it aims to reduce stress and improve efficiency.

Highlights
  • USAG Rules Based Timing
  • Automatic Warm-up Calculation
  • Competition Event Timers
  • Fall & Bump/Touch Timers
  • General Stopwatch Functionality
  • Visual and Audio Cues
  • Offline Reliability (PRO)
Features
Read full description

Take the stress out of warm‑up and competition timing. ChalkTimer is the precision timing app built for gymnastics competitions. Designed by coaches and meet directors, it follows USA Gymnastics (USAG) Rules & Policies to deliver automatic, rule‑compliant warm‑up timing—no spreadsheets, no volunteers, no stress. And now, ChalkTimer goes even further with fully functional competition timing built right in. Every event. Every scenario. Every timing rule handled automatically. Included in the new Competition Timing Suite: • All event timers for every apparatus • Fall timers for accurate, rule‑compliant deductions • Bump/Touch timers for athlete readiness and equipment adjustments • General stopwatch for flexible timing needs across the meet Whether you’re coaching, judging, or running the meet, ChalkTimer keeps your event moving with clarity, fairness, and confidence. --- For Coaches: More Time to Coach, Less Time on the Clock Coaches shouldn’t be juggling stopwatches or second‑guessing timing rules. ChalkTimer handles the math and the countdowns so you can focus on your athletes. • Instantly calculates warm‑up times by level • Visual and audio cues keep everyone on track • Ensures fairness across all rotations • Works on any device—no setup headaches • Lets you coach without watching the clock --- For Meet Directors: Professional Timing Without Extra Staff Running a meet is complex—timing shouldn’t be. ChalkTimer eliminates the need for volunteer timers and manual calculations, giving you a polished, automated solution. • Supports over 144 USAG‑compliant timing combinations • Custom time override for unique formats • Keeps sessions on schedule and transitions smooth • Works offline—no WiFi, no problem (PRO version required) • Projects cleanly to displays or judge panels • Makes your meet look and run like a championship --- Key Features That Set ChalkTimer Apart • Dynamic time calculation by level and athlete count • Audio and visual alerts for seamless transitions • One‑tap reset between rotations • Flexible display modes for any setup • Offline reliability—built for real‑world gym conditions (PRO version required) • Intuitive interface for fast, frustration‑free use --- Built by Gymnastics Pros, for the Gymnastics World ChalkTimer was born from the chaos of real meets. Created by experienced coaches and meet directors, it’s engineered to solve the exact problems you face on competition day. From small invitationals to large‑scale events, ChalkTimer brings order, accuracy, and peace of mind. --- Why ChalkTimer Wins • Trusted USAG rule compliance • Saves time, staff, and sanity • Elevates your meet’s professionalism • Keeps athletes, coaches, and judges in sync • Designed with the gymnastics community in mind --- Run your meet like clockwork—download ChalkTimer today. Visit https://chalktimegymnastics.com for more details.

Screenshots

Onform4 screens
ChalkTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: ChalkTimer at none against Onform's 11. ChalkTimer also leads on review sentiment (100% vs 69%) and rating (5.0 vs 4.8). Onform's advantage is ratings volume (8.7K vs 2) and chart position (#91 vs unranked). On price, update cadence, ads 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. Onform sells 11 in-app purchases, starting at $4.99 per month. ChalkTimer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ChalkTimer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Onform has 8.7K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of Onform's written reviews are positive against 100% of ChalkTimer's.

UpkeepUpdate frequency

Onform ships an update every 5 days, ChalkTimer every 6 days. The most recent releases landed on October 21, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 5 level
Onform versus ChalkTimer: the parameters behind the verdict, then further details
ParameterOnformChalkTimer
PriceFreeFree
Rating4.8 (8.7K ratings)5.0 (2 ratings) — better
Positive reviews69.1% of reviews100.0% of reviews — better
Number of ratings8.7K — better2
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#91 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.618.6
Further details — not scored
Size199 MB17 MB
Age rating4+4+
DeveloperOnForm, Inc.Kristo Designs LLC (US)

Customer experience

Onform

All ratings8,680 ratings
Positive95.2%
Neutral1.6%
Negative3.2%
Written reviews285 reviews
Positive69.1%
Neutral6.3%
Negative24.6%

ChalkTimer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Onform

Reported bugs

3 issues
  • Chat feature not working
  • Inconsistent video recording
  • Syncing issues between devices

Requested features

5 requests
  • Ability to import multiple videos at once
  • More customization options
  • Improved video scrubbing and playback controls
  • Local video storage option
  • Expanded sports support beyond golf

ChalkTimer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Onform

Subscriptions11
  • Personal Monthly$4.991 Month
  • Individual Standard Monthly$9.991 Month
  • Individual Premium Monthly$14.991 Month
Show 8 more
  • Coach Basic Monthly$19.991 Month
  • Coach Monthly$29.991 Month
  • Coach Standard Monthly 1 Seat$39.991 Month
  • Personal Yearly$49.991 Year
  • Coach Pro Monthly 1 Seat$59.991 Month
  • Team/Academy Monthly$79.001 Month
  • Coach Yearly$299.991 Year
  • Team/Academy Yearly$799.001 Year
None

ChalkTimer

No in-app purchases

Questions

Is Onform free?
Onform is free to download, with in-app purchases available.
Is ChalkTimer free?
ChalkTimer is free to download, with no in-app purchases.
Which has better reviews, Onform or ChalkTimer?
ChalkTimer is rated higher. Onform averages 4.8 out of 5 from 8.7K ratings, while ChalkTimer averages 5.0 from 2 ratings.
Do Onform or ChalkTimer have ads?
Neither Onform nor ChalkTimer shows ads.
Which is updated more often, Onform or ChalkTimer?
Onform ships an update every 5 days, and ChalkTimer every 6 days. Most recently, Onform was updated on October 21, 2026 and ChalkTimer on September 29, 2026.

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