# D2O Learning vs LEED AP BD+C Flashcards 2026

D2O Learning and LEED AP BD+C Flashcards 2026 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. D2O Learning sells 2 one-off in-app purchases and LEED AP BD+C Flashcards 2026 sells 9 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | D2O Learning | LEED AP BD+C Flashcards 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Size | 85 MB | 36 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [Alexander Pyjik](https://appshunter.io/developer/1770367776) |

## What reviewers say

### D2O Learning

[App page](https://appshunter.io/ios/app/d2o-learning/id6480183589)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Team D2O Membership | $0.99 | one-time |
| GEM Certified Professional | $4.99 | one-time |


### LEED AP BD+C Flashcards 2026

[App page](https://appshunter.io/ios/app/leed-ap-bd-plus-c-flashcards-2026/id6751614057)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LEED AP Weekly Full Access | $7.99 | per 7 days |
| LEED AP Monthly Full Access | $20.99 | per month |
| LEED AP Monthly Full Access | $20.99 | per month |
| LEED AP Quarterly Full Access | $44.99 | per 3 months |
| LEED AP Quarterly Full Access | $44.99 | per 3 months |
| LEED AP Semiannual Full Access | $79.99 | per 6 months |
| LEED AP Semiannual Full Access | $79.99 | per 6 months |
| LEED AP Annual Full Access | $119.99 | per year |
| LEED AP Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is D2O Learning free?

D2O Learning is free to download, with in-app purchases available.

### Is LEED AP BD+C Flashcards 2026 free?

LEED AP BD+C Flashcards 2026 is free to download, with in-app purchases available.

### Do D2O Learning or LEED AP BD+C Flashcards 2026 have ads?

Neither D2O Learning nor LEED AP BD+C Flashcards 2026 shows ads.

### Which is updated more often, D2O Learning or LEED AP BD+C Flashcards 2026?

D2O Learning ships an update every 7 months, and LEED AP BD+C Flashcards 2026 every 7 months. Most recently, D2O Learning was updated on October 24, 2026 and LEED AP BD+C Flashcards 2026 on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*