Comparison

ContactHelper vs DoBuff

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

Head to head
About

ContactHelper

Effortlessly manage your address book with advanced organization and lightning-fast search capabilities. Improve your native dialing experience for quicker connections. Take full control of your contacts and stay efficiently connected.

Highlights
  • Organize contacts with tags
  • Add pinyin nicknames
  • Instant search by name or number
  • T9 input search
  • Tap to dial functionality
  • Improved T9 dialing accuracy
Read full description

Tired of struggling to find your contacts? This app helps you take full control of your address book! - Organize with tags and pinyin nicknames - Search instantly by name, number, or T9 input - Tap to dial — faster than ever Even better, it improves the native T9 dialing experience, ensuring more accurate contact sorting in English system settings. Stay efficient, stay connected — no more fumbling around!

About

DoBuff

Enhance your reminders and calendar with powerful tools for time management, progress tracking, and goal setting. Visualize your tasks on a timeline, create unique weekly and yearly plans, and utilize focus timers with progress bars. Gain insights with trend statistics and countdowns.

Highlights
  • Timeline view for tasks
  • Weekly, monthly, and yearly planning
  • Focus timer with progress bar
  • Trend statistics and heatmaps
  • Countdown timers
  • Calendar integration
  • Widgets
Features
Read full description

“DoBuff” is primarily built around Reminders and Calendar, providing core features such as time management, progress tracking, goal management, and more. “DoBuff” is designed to enhance Reminders and Calendar with a range of powerful additional features, helping you use them more effectively. “DoBuff” started as a collection of tools I built for my own use with Reminders and Calendar. It was developed around my personal needs and is now available for anyone with similar needs. If you are also a Reminders or Calendar user like me, “DoBuff” may be a great fit for you. Core features and goals (supported for both Reminders and Calendar events): 1. Display tasks and events on a timeline. 2. Unique weekly, monthly, and yearly planning views. 3. Two separate tag systems that can be used independently or synced with Reminders. 4. Focus timers based on Reminders for better time management. 5. Progress bars based on Reminders, with lists serving as progress trackers for goals. 6. Completion and time-spent statistics for Reminders lists. 7. Trend analytics, including tag-based focus time statistics, list tracking, yearly heatmaps, time paths, footprint maps, and more. 8. Countdown support for Reminders. 9. Mark Reminders as abandoned or postponed. 10. Calendar integration, including reading events and writing focus sessions to Calendar. 11. Counting and count tracking. 12. Enhancements available for Reminders are also supported for Calendar events. 13. Export and back up Reminders. 14. Reminder countdowns with support for system alarm countdowns. 15. Note templates for quickly adding notes. 16. Add notes to lists. 17. A range of widgets, including Focus widgets, Calendar widgets, Goal Tracking widgets, Today widgets, and more. 18. Automatic focus timing. 19. Favorites for Reminders and Calendar events. 20. Enhanced global search. 21. Apple Watch version. 22. Turn Reminders into anniversary reminders. 23. Pomodoro focus timer support. 24. Health and sleep data integration, including automatic sleep focus tracking. 25. Energy and focus management. 26. Energy level management. 27. Daily, weekly, monthly, and yearly records and summaries. 28. Daily mood tracking. 29. List migration. And several other feature enhancements. For Calendar events, DoBuff also provides workflow-based event management, such as marking events as completed or abandoned. These are only some of the features currently available in “DoBuff”. More features are being organized and will be released gradually. *Membership Subscription: Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and the renewal price will be confirmed at that time. Subscriptions can be managed by the user. Auto-renewal can be turned off after purchase by going to the user’s App Store account settings. 【Feedback & Support】 If you have any questions or issues while using the app, please contact us at: liyubelief@iCloud.com Terms of Use: https://docs.qq.com/doc/DSFZOeURmQk1McGVu Privacy Policy: https://docs.qq.com/doc/DSFBQSWJwcERmRUhB

Screenshots

ContactHelper4 screens
DoBuff4 screens

Verdict

The call

The clearest difference is price: DoBuff at Free against ContactHelper's $1.99. DoBuff also leads on ratings volume (39 vs 4). On rating, review sentiment, update cadence and ads 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

DoBuff is free to download; ContactHelper costs $1.99 up front. ContactHelper sells 1 one-off in-app purchase and DoBuff sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ContactHelper holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DoBuff has 39 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

ContactHelper ships an update every 9 days, DoBuff weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
ContactHelper versus DoBuff: the parameters behind the verdict, then further details
ParameterContactHelperDoBuff
Price$1.99Free — better
Rating5.0 (4 ratings) — better4.8 (39 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings439 — better
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size2 MB21 MB
Age rating4+4+
Developer虎 伏宇 李

Customer experience

ContactHelper

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DoBuff

All ratings39 ratings
Positive94.9%
Neutral2.6%
Negative2.6%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

ContactHelper

One-time1
  • Upgrade to Premium$1.99
3 purchases

DoBuff

Subscriptions2
  • 月会员$0.991 Month
  • 年会员$2.991 Year
One-time1
  • 永久会员$9.99

Questions

Is ContactHelper free?
ContactHelper costs $1.99, and also offers in-app purchases.
Is DoBuff free?
DoBuff is free to download, with in-app purchases available.
Which has better reviews, ContactHelper or DoBuff?
ContactHelper is rated higher. ContactHelper averages 5.0 out of 5 from 4 ratings, while DoBuff averages 4.8 from 39 ratings.
Do ContactHelper or DoBuff have ads?
Neither ContactHelper nor DoBuff shows ads.
Which is updated more often, ContactHelper or DoBuff?
ContactHelper ships an update every 9 days, and DoBuff weekly. Most recently, ContactHelper was updated on October 24, 2026 and DoBuff on October 25, 2026.

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