# Psylog.me vs D1

The clearest difference is ads: Psylog.me at none against D1's shown. Psylog.me also leads on update cadence (every 4 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Psylog.me sells 2 in-app purchases, starting at $3.99 per month and D1 sells 9 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Psylog.me ships an update every 4 days, D1 monthly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Psylog.me | D1 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 128 MB | 110 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [bLine Analytics](https://appshunter.io/developer/1802440369) | [Ron Azogui](https://appshunter.io/developer/973043504) |

## What reviewers say

### Psylog.me

[App page](https://appshunter.io/ios/app/psylogme/id6743360000)

Gain clarity on life's questions with AI-powered I Ching readings. Journal your thoughts, cast a hexagram, and receive personalized interpretations to guide your decisions. Explore ongoing conversations and revisit past insights in your archive.

**Highlights:** AI-powered I Ching readings, Personalized interpretations, Journaling and question asking, Hexagram casting, Ongoing conversation feature, Reading archive and patterns

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Psylog.me | $3.99 | per month |
| Psylog.me | $9.99 | per month |


### D1

[App page](https://appshunter.io/ios/app/d1-join-d1/id6760951356)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Join D1 Pro | $5.99 | per month |
| Mentor Tier 1 | $1.99 | one-time |
| Mentor Tier 2 | $2.99 | one-time |
| Mentor Tier 3 | $4.99 | one-time |
| Mentor Tier 4 | $6.99 | one-time |
| Mentor Tier 5 | $14.99 | one-time |
| Mentor Tier 6 | $29.99 | one-time |
| Mentor Tier 7 | $49.99 | one-time |
| Mentor Tier 8 | $69.99 | one-time |


## Frequently asked questions

### Is Psylog.me free?

Psylog.me is free to download, with in-app purchases available.

### Is D1 free?

D1 is free to download, with in-app purchases available.

### Do Psylog.me or D1 have ads?

D1 shows ads; Psylog.me does not.

### Which is updated more often, Psylog.me or D1?

Psylog.me ships an update every 4 days, and D1 monthly. Most recently, Psylog.me was updated on October 28, 2026 and D1 on October 28, 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.*