Ad system
crystall.io
Most of the 16,373 apps that declare crystall.io reach it through a reseller: 55% have a RESELLER line, 53% a DIRECT one. Of 1,462 lines checked against its sellers.json (64 sellers), 39% match, 6.1% name an unlisted account and 54% declare the wrong seller type.
- Apps declaring it
- 16,373
- Sellers in sellers.json
- 64
- Lines verified
- 39%
- Lines with errors
- 975
- Avg. supply path score
- 50.0 / 100
8,728 DIRECT · 9,078 RESELLER
0% confidential
623 of 1,608 checked lines
1,608 lines in total
16,426 apps scored
App counts, the sellers.json breakdown and the directory ranking are as of , recomputed daily (the same numbers as the directory). Line counts are recounted every 10 minutes. sellers.json last read 11 October 2026. The supply path score sums up how short and clean the declared paths are, 0 to 100 (how it is computed).
How to add crystall.io to app-ads.txt
One line per account, in the app-ads.txt at the root of the domain your App Store and Google Play listings name as the developer website.
crystall.io, YOUR_ACCOUNT_ID, DIRECT
crystall.io, YOUR_ACCOUNT_ID, RESELLER
- Field 1:
crystall.io, the domain crystall.io uses in app-ads.txt. - Field 2: your account ID with crystall.io. It must equal the
seller_idin crystall.io's sellers.json. - Field 3: DIRECT if you hold the account, RESELLER if a partner holds it and sells your inventory. DIRECT vs RESELLER
- Field 4 (optional): a certification authority ID. Most lines naming crystall.io carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 64
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 11, 2026
- PUBLISHER29
- INTERMEDIARY24
- BOTH11
Cross-check of lines naming crystall.io
- Verified 623
- Seller ID not found 93
- DIRECT but intermediary 0
- RESELLER but publisher 882
- Seller type BOTH 10
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming crystall.io is looked up in its sellers.json. What each status means
Common errors with crystall.io lines
-
RESELLER but publisher
882 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask crystall.io why the account is listed as PUBLISHER.
-
Seller ID not found
93 lines
Ask crystall.io for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
-
Seller type BOTH
10 lines
The account is listed as BOTH, so sellers.json alone cannot tell a buyer which relationship applies. Nothing to fix on your side; buyers usually look at the seller's domain.
Apps that declare crystall.io
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | DIRECT | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about crystall.io
Does crystall.io publish a sellers.json?
Yes. Its file at https://www.crystall.io/sellers.json listed 64 sellers when we last read it on 11 October 2026: 29 publishers, 24 intermediaries and 11 listed as both; 0% are confidential.
How many apps declare crystall.io in app-ads.txt?
16,373 apps in Stoqlab's data (delisted apps included) declare crystall.io: 8,728 with at least one DIRECT line and 9,078 with at least one RESELLER line, across 1,360 app-ads.txt files, as of 11 October 2026 (recounted daily).
Why do crystall.io lines fail verification?
Of 1,608 lines naming crystall.io, 975 contradict its sellers.json. The most common case is "RESELLER but publisher", on 882 lines. If the account is yours, declare it DIRECT. If a partner holds it, ask crystall.io why the account is listed as PUBLISHER.
Not sure whether your line should say DIRECT or RESELLER? DIRECT vs RESELLER in app-ads.txt
Sources: the public app-ads.txt files of tracked apps and the sellers.json of crystall.io. Something wrong? Tell us.