About Okrum & Calculation Methodology
Mathematical framework, geographic tier weighting, and empirical benchmark calibration governing the Okrum monetization model.
1. Operational Purpose & Editorial Scope
Okrum is an independent technical reference and ad yield modeling tool built for mobile application developers, indie game studios, and web publishers. Publicly quoted ad network rates frequently omit critical variables such as SDK fill-rate decay, regional purchasing power disparities, and post-ATT platform attribution spreads.
To solve this, Okrum provides a deterministic client-side calculation engine paired with 15 technical engineering guides covering programmatic auction mechanics, mediation architecture, cross-border payout routing, and international tax compliance.
2. Mathematical Calculation Formulas
Every projection on Okrum is computed dynamically in the browser using the following equations:
3. Geographic Tier Weighting Matrix
Ad inventory valuation is segmented into three macro-regions calibrated against public programmatic clearing data (referencing aggregated quarterly indices from Tenjin, Liftoff, Moloco, and Singular):
| Tier | Representative Markets | Rewarded Video Base | Interstitial Base | Banner Base |
|---|---|---|---|---|
| Tier 1 | US, UK, Canada, Australia, Germany, Switzerland | $24.50 | $9.80 | $0.72 |
| Tier 2 | Japan, South Korea, France, Nordics, UAE, Taiwan | $11.20 | $4.30 | $0.31 |
| Tier 3 | Brazil, Mexico, India, Indonesia, Vietnam, MENA | $3.40 | $1.25 | $0.12 |
4. Version Changelog & Calibration Audits
H1 2026 Tier Calibration & Fill-Rate Modeling
Added variable SDK fill-rate adjustments, ARPDAU calculations, and updated baseline eCPMs reflecting Q1 post-holiday advertiser bid normalization and SKAdNetwork 4.0 adoption.
In-App Bidding Matrix Integration
Incorporated comparative yield indices across AppLovin MAX, Google AdMob, Unity LevelPlay, Meta Audience Network, and Mintegral programmatic adapters.
Initial Public Release
Deployed baseline deterministic calculator for iOS and Android interstitial, banner, and rewarded video inventory.
5. Editorial Governance & Author Attribution
All analytical guides and mathematical formulas published on Okrum are authored and reviewed by independent programmatic ad engineers and mobile monetization practitioners. Our editorial desk continuously cross-references open-market telemetry, SDK documentation from Google AdMob and AppLovin, and programmatic index reports from Tenjin, Liftoff, and Singular.