Comparison

IO vs Chalker

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

Head to head
About

IO

This app syncs with smart cycling hardware to display detailed riding data, manage your e-bike, and provide anti-theft features. It offers a user-friendly interface for tracking performance and staying connected on the go.

Highlights
  • Riding data synchronization
  • Detailed tour reports
  • E-bike management
  • Anti-theft alert
  • Bike locator
  • Phone call notifications
Read full description

IO-HAWK is a simple and intuitive APP to view your riding data and your e-bike.. It is designed to be used together with "B-COCKPiT" smart cycling hardware. IO-HAWK contains the following core functions: - Riding data synchronization. - Detailed tour report for each segment of riding including distance, duration, calories, max and average speeds. - Top riders ranking - E-bike management (Pairing and system diagnostics). - Anti-theft alert and bike locator. - Phone call notification on the cycling computer. IO-HAWK is designed to be simple and user-friendly with emphasize on minimizing user actions and burdens while using it. Intuitive Connection: No need to browse through setting menus and device lists to pair with a B-COCKPiT, simply scan the QR-Code and there you go. Just Ride, Let It Remember the Rest: You don't need to do anything at the beginning, end or during each ride, the B-COCKPiT on your bike will automatically record each ride for you, when you feel convenient, just pull out your IO-HAWK APP and it will automatically download all the data from B-COCKPiT via Bluetooth Low Energy. Battery Friendly: Thanks to the on-demand connectivity and Bluetooth Low Energy used, IO-HAWK can minimize its power consumption, making only a tiny footprint on your phone's battery usage. Don't Miss any Important Calls: When riding, your smart phone should always be safely stowed in your pocket or backpack, it will "push" the incoming phone call notification to B-COCKPiT's screen, so you won't miss any important calls. For your safety, you cannot pick up the phone through B-COCKPiT, it's just a notification, if you want to answer the phone, please stop riding and find a safe place first. Lock and Find Your Bike: If your bike has the "N" models of B-COCKPiT installed, you can put a "soft-lock" to your bike using IO-HAWK, when a "Soft-Locked" bike gets moved, it will send an alarm to your phone, and you can track the position of your bike using IO-HAWK.

About

Chalker

This app helps dart players track scores and improve their game. It offers various game modes, training exercises, and configurable bots for practice. Analyze your performance with detailed statistics to identify areas for improvement.

Highlights
  • Multiple dart game modes (X01, Cricket, Baseball)
  • Skill-building training exercises
  • Configurable bot opponents
  • Detailed game statistics and leaderboards
  • In-game rules reference
Features
Read full description

Chalker - Dart Scorekeeper PDC Ditch the mental math and focus on the board—Chalker is the ultimate dart scorekeeper built to turn casual throws into serious progress. Chalker is designed for players who want to get sharper every session, not just track who won. Whether you're warming up solo, battling bots, or running a full game night, Chalker keeps you focused on the game and honest about your progress. Why Choose Chalker? • Game Modes for Every Occasion: Play X01 with fully configurable start scores and in/out rules (straight, double, or master). Run a standard or cutthroat game of Cricket, or take a turn Around the World. • Skill-Building Training: Access a dedicated, searchable Training menu with modes designed to sharpen specific targets. Build doubles pressure with Bob's 27, practice consistency with Around the World, and look forward to more modes dropping soon. • Party & Pub Night Formats: Keep the energy high with social group modes. Run 7 or 9 innings of head-to-head Baseball, or test your nerve with Halve-It—where every missed target is punished. • Configurable Bot Opponents: No partner? No problem. Practice anytime against built-in bots. Adjust their aim and accuracy to match anyone from a casual pub player to a machine that never misses. • Stats That Show the Truth: Every game is saved to your history. Dive into dedicated statistics and leaderboards for X01, Cricket, and Around the World to see exactly where you're improving and where you need to put in the reps. • In-Game Rules Reference: Settling a debate? Full rules references are just one tap away. No arguing, no Googling. Built for darts players who take their game seriously. Play more. Practise smarter. Throw better. Terms of Use (EULA): https://fishy-agenda-2e9.notion.site/Terms-Conditions-3721422bba9b80b79839fbf910ac695e Privacy Policy: https://fishy-agenda-2e9.notion.site/Privacy-Policy-3721422bba9b808d9719ea90ebed5983

Screenshots

IO3 screens
Chalker4 screens

Verdict

The call

The clearest difference is in-app purchases: IO at none against Chalker's 3. IO also leads on iOS requirement (9.0 vs 18). On price, 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. Chalker sells 3 in-app purchases, starting at $2.99 per month. IO asks for nothing beyond the download.

Scorecard3 real differences · 5 level
IO versus Chalker: the parameters behind the verdict, then further details
ParameterIOChalker
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequency—Every 4 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better18
Further details — not scored
Size11 MB24 MB
Age rating4+4+
DeveloperDigitech Co., Ltd.Maximilian Berndt

In-app purchases

None

IO

No in-app purchases

3 purchases

Chalker

Subscriptions2
  • Chalker Pro Monthly7 Days trial$2.991 Month
  • Chalker Pro (Yearly)7 Days trial$17.991 Year
One-time1
  • Dart Tracker Pro (Lifetime)$39.99

Questions

Is IO free?
IO is free to download, with no in-app purchases.
Is Chalker free?
Chalker is free to download, with in-app purchases available.
Do IO or Chalker have ads?
Neither IO nor Chalker shows ads.

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