Prayer vs D
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Prayer
This app offers a collection of Japanese sutras for remembrance and prayer for deceased loved ones. It includes instrumental sounds and a recording function, allowing users to personalize their spiritual practice. Users can also display photos of those they wish to honor.
- 78 Japanese sutras
- Instrumental sounds (drum, singing bowl)
- Recording function
- Customizable sutra playback order
- Photo display for loved ones
- Preset landscape images
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This app is for prayers in memory of deceased & loved people. You may pray for them by listening to the sutras on this app. Sounds provided by this app: - 78 Japanese sutras (Heart Sutra, Shingonshu, Soutoushu, Nichirenshu, Jodoshu, Jodoshinshu, etc.) - wooden drum (instrument) - singing bowl (instrument) This app has a recording function, so you can also use your own sounds. When you select multiple sutras in the settings, they will play in order from top to bottom. You can also chant sutras yourself using the buttons that make wooden drum and singing bowl. You can switch display of ten photos of someone who has passed away. For those who prefer not to use photos, we also offer preset images such as landscapes.
D
This app helps users track their Daimoku chanting sessions using a stopwatch, manage personal prayers, and set and monitor progress towards chanting goals. It offers trend analysis, reminders, and a calendar for anniversaries, all while functioning offline.
- Offline Daimoku recording
- Prayer management (add, edit, delete)
- Target setting and progress tracking
- Daimoku trend analysis
- Customizable reminders
- Anniversary calendar
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-Function List- 1: Record Daimoku This is a basic function of this app, so I created this to record properly in offline. This app records your Daimoku by Stopwatch, but it is enable to count whenever you open other apps or when your device went sleep until you force termination. When it counting, icon badge will show up on Chant tab. We can use our devices and apps but not always. No worry, you can record it later. 2: Prayers Management You can freely add, edit, and delete your own prayers, and see them always even while chanting. Every prayers has useful attributes such as start date, target end date, category, favorite flag, you can filter by category, and you can change those attributes with your swipe action. When I had managed my prayers by paper book, wrote black line and completed date when completed. You can do it the same thing with this app, and you can see completed and canceled prayers as well as On-Going prayers. I tried not to lose the usefulness of the way of paper. Each prayers can be managed by the status of "On-Going", "Completed", and "Canceled" 3: Target Management When you see, touch, meet, or attend in a meeting, you will resolve things such as 1 hour Daimoku everyday. Or maybe you will start your challenge towards next coming anniversary day. You can use this "Target Management" function to manage your challenge. By checking the actual result of your Daimoku from start date and end date on the beautiful graph, you can know your progress and position against to your target. Of course we will have multiple targets, and this app can manage multiple targets. After complete one target, you can add next one and check the progress. Also you can check back your past results and past targets, because this app manage targets by adding to a target list. 4: Trend Analysis In addition to Target Management, you can check your Daimoku records of last 1 week by daily, last 1 month by daily, and 1 year by monthly. And, you can also check average by weekday, so you will see that "Average of Friday is little behind compared with other weekday" Also, D-Rec has a calendar function, and some anniversaries are set as default. I know that we have our own anniversaries by region and organization. No worry, you can add your own anniversaries on the calendar and target it. By setting some your own anniversaries, you can set the target. 5: Dimoku Amount Calculation This app basically manage your Daimoku by second unit, however, you can also check Daimoku amount at the same time, if you register your Daimoku amount per minute in advance. Is if really 1,000 Daimoku by 20 minutes? Pace is different by individuals, so register your pace. 6: Remind Function I think you used to chant Daimoku everyday and already that's a part of your life. But if you set the remind time, app will tell you "It is the time to chant Daimoku." 7: Calendar Function (Anniversary Register Function) You can check your chanting date and time by calendar. Some anniversaries which are on public home page of SIG, are default set. In addition, you may have your own anniversaries for your local region, and organizations. Yes, you can add any anniversaries on this calendar. It is good to set some anniversaries and set target toward some your anniversaries. 8: language is available in Japanese and English I would like overseas SGI members to use this app, so I created this in both Japanese and English. If you change your iOS device language, the app language change.
Screenshots
Verdict
The clearest difference is in-app purchases: D at none against Prayer's 10. D also leads on update cadence (every 5 days vs every 2 months). Prayer's advantage is review sentiment (55% vs 35%). On price, ads, monetization model and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Prayer sells 10 one-off in-app purchases. D asks for nothing beyond the download.
Prayer ships an update every 2 months, D every 5 days. The most recent releases landed on September 16, 2026 and September 10, 2026 respectively.
| Parameter | Prayer | D |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 55.0% of reviews โ better | 35.0% of reviews |
| Update frequency | Every 2 months | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.3 | 11.2 โ better |
| Further details โ not scored | ||
| Size | 33 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | HANBUNCO, INC. | Hiromi Fujita |
Customer experience
Prayer
D
In-app purchases
Prayer
- Remove Ads$0.99
- HEART SUTRA$1.99
- NICHIREN SHU HOUBENPONDAINI$1.99
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- SHINSHU OOTANIHA SHOUSHINGE$1.99
- SHINSHU OOTANIHA NENBUTSU$1.99
- JOUDOSHINSHU HONGANJIHA SHOUSHINNENBUTSUGE$1.99
- KOUYASAN SHINGONSHU SANKI$1.99
- KOUYASAN SHINGONSHU HEART SUTRA$1.99
- SHINGONSHU CHISANHA HEART SUTRA$1.99
- SOUTOU SHU FUMONBONGE$1.99
D
No in-app purchases
Questions
Is Prayer free?
Is D free?
Do Prayer or D have ads?
Which is updated more often, Prayer or D?
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