Ad system
castify.ai
Most of the 127,637 apps that declare castify.ai reach it through a reseller: 100% have a RESELLER line, 18% a DIRECT one (17,835 files, 9,991 of them through InMobi's account). 24% of the 50,997 lines checked name an account its sellers.json (336 sellers) does not list.
- Apps declaring it
- 127,637
- Sellers in sellers.json
- 336
- Lines verified
- 73%
- Lines with errors
- 14,349
- Avg. supply path score
- 50.5 / 100
22,340 DIRECT · 127,454 RESELLER
0% confidential
39,229 of 53,586 checked lines
53,586 lines in total
133,296 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 13 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 castify.ai 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.
castify.ai, YOUR_ACCOUNT_ID, DIRECT
castify.ai, YOUR_ACCOUNT_ID, RESELLER
- Field 1:
castify.ai, the domain castify.ai uses in app-ads.txt. - Field 2: your account ID with castify.ai. It must equal the
seller_idin castify.ai'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 castify.ai carry none, or different ones, so we do not suggest one.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 336
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 13, 2026
- PUBLISHER309
- INTERMEDIARY22
- BOTH5
Cross-check of lines naming castify.ai
- Verified 39,229
- Seller ID not found 12,693
- DIRECT but intermediary 1,579
- RESELLER but publisher 77
- Seller type BOTH 8
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming castify.ai is looked up in its sellers.json. What each status means
Common errors with castify.ai lines
-
Seller ID not found
12,693 lines
Ask castify.ai 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.
-
DIRECT but intermediary
1,579 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask castify.ai to list it as PUBLISHER.
-
RESELLER but publisher
77 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask castify.ai why the account is listed as PUBLISHER.
-
Seller type BOTH
8 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.
Intermediaries most declared as RESELLER
Accounts on castify.ai that its sellers.json lists as INTERMEDIARY or BOTH, by the number of app-ads.txt files declaring them. Confidential sellers are left out.
| Seller domain | Type | Files |
|---|---|---|
| inmobi.com | INTERMEDIARY | 9,991 |
| fyber.com | INTERMEDIARY | 7,094 |
| unity.com | INTERMEDIARY | 6,299 |
| smaato.com | INTERMEDIARY | 5,039 |
| ironsrc.com | INTERMEDIARY | 4,304 |
| pubnative.net | INTERMEDIARY | 2,502 |
| appodeal.com | INTERMEDIARY | 1,410 |
| adnetplus.tv | INTERMEDIARY | 7 |
Apps that declare castify.ai
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live |
Questions about castify.ai
Does castify.ai publish a sellers.json?
Yes. Its file at https://castify.ai/sellers.json listed 336 sellers when we last read it on 13 October 2026: 309 publishers, 22 intermediaries and 5 listed as both; 0% are confidential.
How many apps declare castify.ai in app-ads.txt?
127,637 apps in Stoqlab's data (delisted apps included) declare castify.ai: 22,340 with at least one DIRECT line and 127,454 with at least one RESELLER line, across 17,835 app-ads.txt files, as of 13 October 2026 (recounted daily).
Why do castify.ai lines fail verification?
Of 53,586 lines naming castify.ai, 14,349 contradict its sellers.json. The most common case is "Seller ID not found", on 12,693 lines. Ask castify.ai 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.
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 castify.ai. Something wrong? Tell us.