FirstImpression.io vs OKO
FirstImpression.io
Custom display, video and native ad products deployed through a single tag
Publishers using it: 2 · incl. Haaretz, El Financiero
OKO
Managed AdX and ad-management service for high-traffic publishers
Publishers using it: 1
Last verified Nov 12, 2026
At a glance
- FirstImpression.io scores 3.3/5 and OKO scores 3.2/5 in Benchmark Grid's independent ad yield management platforms benchmark, both assessed on the same 10 criteria.
- The widest gaps are published pricing & revenue share (FirstImpression.io 1.5, OKO 2.8) and inventory control & demand visibility (FirstImpression.io 3.0, OKO 2.0); they are within 0.3 on 2 of 10 criteria.
- Both are built for mid-market and enterprise publishers.
- On total cost of ownership FirstImpression.io scores 1.6 and OKO 3.3 (higher means better value, not a lower price).
- In our tracking 2 publishers use FirstImpression.io and 1 use OKO.
- Scores last verified 12 Nov 2026. Vendors cannot pay for a score or a position.
Where they differ
FirstImpression.io is stronger on inventory Control & Demand Visibility (3.0 vs 2.0) and integration Effort & Ad-Ops Workload (4.0 vs 3.2).
OKO is stronger on published Pricing & Revenue Share (2.8 vs 1.5) and direct Demand & Partner Quality (3.4 vs 2.5).
Which one fits
Choose FirstImpression.io if…
- You publish at mid-market and enterprise scale.
- You weight inventory Control & Demand Visibility, integration Effort & Ad-Ops Workload and onboarding & Ongoing Support heavily — FirstImpression.io leads on those in this benchmark.
Choose OKO if…
- You publish at mid-market and enterprise scale.
- You weight published Pricing & Revenue Share, direct Demand & Partner Quality and auction Setup & Bidder Coverage heavily — OKO leads on those in this benchmark.
Also weighing these
The nearest-scored tools to FirstImpression.io and OKO in this benchmark, listed A to Z.
- 3.4AniviewIndependent video ad server and yield engineRead review
- 3.3BrowsiAI-powered ad layout and density optimisation for publishersRead review
- 3.5NitroPayGaming-focused ad monetisation for publishers, now Nitro by OverwolfRead review
- 3.6YieldbirdYield management toolkit built on header biddingRead review
All 8 scored tools are in Best Ad Yield Management Platforms for Publishers.
Who uses them
Publishers we have detected running each tool, from ads.txt, site code and published case studies. Agencies, brands and vendors are excluded.
FirstImpression.io · 2
Head to head
| Criterion | FirstImpression.io | OKO |
|---|---|---|
| Yield Uplift & RPM Growth16% of capability | 3.6 | 3.2 |
| Auction Setup & Bidder Coverage14% of capability | 2.5 | 3.2 |
| Inventory Control & Demand Visibility12% of capability | 3.0 | 2.0 |
| Revenue Reporting & Forecasting12% of capability | 2.5 | 2.0 |
| Direct Demand & Partner Quality10% of capability | 2.5 | 3.4 |
| Integration Effort & Ad-Ops Workload10% of capability | 4.0 | 3.2 |
| Page Speed & Core Web Vitals8% of capability | 2.5 | 2.5 |
| Consent & Privacy Readiness6% of capability | 2.5 | 2.5 |
| Onboarding & Ongoing Support6% of capability | 3.5 | 2.8 |
| Published Pricing & Revenue Share6% of capability | 1.5 | 2.8 |
| Capability45% of composite | 2.9 | 2.8 |
| Publisher fit40% of composite | 4.5 | 3.5 |
| Total cost of ownership15% of composite | 1.6 | 3.3 |
Cost of ownership
| Sub-score | FirstImpression.io | OKO |
|---|---|---|
| Pricing transparency | 1.0 | 3.0 |
| Entry cost | 1.0 | 4.5 |
| Implementation cost | 1.5 | 3.0 |
| Hidden-fee risk | 2.5 | 3.0 |
| Ongoing cost | 2.0 | 3.0 |
FirstImpression.io pricing
Custom pricing; contact the vendor for a quote.
OKO pricing
Revenue share, reported at 15% of revenue from the subsidiary AdX account; confirm terms with the vendor.
What users say
FirstImpression.io
0 positive · 2 neutral · 0 negative
OKO
No public discussion analysed yet.
Mentions we could not tie to a real user, and those flagged as promotional, are excluded. Sentiment is opinion, and is independent of the verified publisher adoptions above.
FirstImpression.io scores 3.3 and OKO scores 3.2 in Benchmark Grid's independent Best Ad Yield Management Platforms for Publishers benchmark (benchmarkgrid.com/vs/firstimpression-io/oko, verified Nov 12, 2026)
Common questions
How do FirstImpression.io and OKO differ?
FirstImpression.io is stronger on inventory Control & Demand Visibility (3.0 vs 2.0) and integration Effort & Ad-Ops Workload (4.0 vs 3.2). OKO is stronger on published Pricing & Revenue Share (2.8 vs 1.5) and direct Demand & Partner Quality (3.4 vs 2.5). Neither is better in the abstract — which one suits you depends on which of those dimensions carries the most weight in your operation.
Which is cheaper, FirstImpression.io or OKO?
On total cost of ownership — pricing transparency, entry cost, implementation, hidden-fee risk and ongoing cost — FirstImpression.io scores 1.6/5 and OKO scores 3.3/5. A higher score means better value, not a lower sticker price.
How are these scores calculated?
Each tool is assessed against its category's published criteria (10 in this benchmark), which make up Capability (45% of the composite), Publisher fit (40%) and Total cost of ownership (15%). Assessment is carried out by SODP's editorial team against a published methodology. Vendors cannot pay for inclusion, scores or positions.
Share:
Both tools are scored in Best Ad Yield Management Platforms for Publishers. See alternatives to FirstImpression.io or alternatives to OKO.
Weighing a third option? Add a tool to this comparison.
Where to next
Four questions, and a scored stack across every benchmark — not just Best Ad Yield Management Platforms for Publishers
Every scored tool in Best Ad Yield Management Platforms for Publishers, with the criteria behind each number
Every category, independently scored
Related comparisons
Other head-to-heads publishers look at in Best Ad Yield Management Platforms for Publishers.
