Calculator X: Math for iPad
by Otrofy Inc. · 1198685408
Most of the 122 lines in Calculator X: Math for iPad's app-ads.txt (otrofy.com) are RESELLER lines: 105 against 17 DIRECT, across 66 ad systems. 30 of the 100 lines checked name a seller ID the network's sellers.json does not list, so buyers that check drop those paths. The file last changed on 3 October 2026; the same file covers 7 apps of this developer.
Store data
- Rating
- 4.62
- Installs
- —
- Category
- Finance
- Contains ads
- No
6,242 ratings
Not published by Apple
Offers in-app purchases
app-ads.txt
- Domain
- otrofy.com
- Status
- Found (200)
- Lines
- 122
- DIRECT / RESELLER
- 17 / 105
- Parse errors
- 2
- Last fetched
- Oct 10, 2026
- Last changed
- Oct 3, 2026
sellers.json cross-check
122 lines checked
Verified
50
Errors
42
Warnings
11
- Seller ID not found 30
- DIRECT but intermediary 11
- RESELLER but publisher 1
- Seller type BOTH 8
- No sellers.json 3
- Unchecked 19
Declared supply tree
17 direct accounts across 15 direct sellers · 44 resellers buying from them · 61 not matched
| Direct seller | Accounts | Resold by | Issues |
|---|---|---|---|
| unity.com | 1 | 20 resellers: pubmatic.com, rubiconproject.com, appads.in … | 1 |
| smaato.com | 1 | 8 resellers: bidmachine.io, xad.com, smartadserver.com … | 1 |
| sharethrough.com | 1 | 4 resellers: smaato.com, openx.com, rubiconproject.com … | 1 |
| onetag.com | 2 | 3 resellers: rubiconproject.com, pubmatic.com, appnexus.com | 2 |
| google.com | 1 | 1 reseller: openx.com | 0 |
| pubmatic.com | 2 | — | 2 |
| adform.com | 1 | — | 1 |
| admatic.com.tr | 1 | — | 1 |
| admixer.net | 1 | — | 1 |
| adtarget.com.tr | 1 | — | 1 |
| chocolateplatform.com | 1 | — | 1 |
| facebook.com | 1 | — | 0 |
| + 3 more direct sellers in the full tree | |||
61 resellers, intermediary not matched to a direct seller of this app (account not found in the ad system's sellers.json: 27; not cross-checked yet: 18; the intermediary's domain is not a direct seller of this app: 12; sellers.json lists the account as a publisher, not an intermediary: 1; the ad system publishes no usable sellers.json: 3).
Seller IDs the networks do not list
30 lines of this app-ads.txt name an account ID that the ad system's sellers.json does not contain; the first 15 in file order. Usually a stale line or a typo in the ID. How to fix it
| Line | Ad system | Account ID | Relationship |
|---|---|---|---|
| 3 | unity.com | 1610282 | DIRECT |
| 6 | adingo.jp | 26517 | RESELLER |
| 25 | openx.com | 540871654 | RESELLER |
| 31 | rubiconproject.com | 21526 | RESELLER |
| 33 | rubiconproject.com | 14334 | RESELLER |
| 40 | appnexus.com | 10617 | RESELLER |
| 50 | kidoz.net | 19692013 | RESELLER |
| 52 | lemmatechnologies.com | 552 | RESELLER |
| 53 | lemmatechnologies.com | 144 | RESELLER |
| 57 | indexexchange.com | 194080 | RESELLER |
| 58 | indexexchange.com | 194730 | RESELLER |
| 59 | indexexchange.com | 186684 | RESELLER |
| 62 | video.unrulymedia.com | 3630748062 | RESELLER |
| 63 | contextweb.com | 562499 | RESELLER |
| 64 | mobilefuse.com | 3847 | RESELLER |
More apps from Otrofy Inc.
New to these files? What is app-ads.txt · Network directory · Glossary
Last crawled Fri, Oct 9, 2026 2:49 AM. Data derived from the public store listing, the developer's app-ads.txt and the ad systems' sellers.json files.