Affinity Photo vs PaintTool SAI: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Affinity Photo and PaintTool SAI side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Affinity Photo leads on a free plan. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Affinity Photo
Pro photo editing without the subscription
Best for you if:
- • You want a fully free tool (PaintTool SAI requires payment)
PaintTool SAI
Lightweight painting software for digital artists with amazing anti-aliased drawings.
Best for you if:
- • You want lightweight and performs well on older systems
| At a Glance | Affinity Photo | PaintTool SAI |
|---|---|---|
Starts at | Free 100% free | One-time packs from $37 |
Category | Image Editing Graphic Design | Graphic Design Image Editing |
Rating | 4.6/5 G2 4.5 · Capterra 4.8 333 reviews | 4.4/5 G2 4.3 · Capterra 4.3 · SourceForge 5.0 72 reviews |
Free plan | Yes | No |
Watch out for | No cloud storage included, must use third-party. | No cloud storage or collaboration features |
Choose Affinity Photo or PaintTool SAI?
Choose Affinity Photo if
- You want a fully free tool (PaintTool SAI requires payment)
- You want one-time purchase
- You want professional features
- You work in image editing, not graphic design
Choose PaintTool SAI if
- You want lightweight and performs well on older systems
- You want excellent line art and anti-aliasing capabilities
- You work in graphic design, not image editing
In-Depth Analysis
Affinity Photo
Pro photo editing without the subscription
Affinity Photo's one-time purchase model is exceptionally fair and generous compared to the subscription-heavy market.
Watch out
No cloud storage included, must use third-party.
Strengths
- Pro: One-time purchase
- Pro: Professional features
- Pro: Great performance
Weaknesses
- Con: Smaller community
- Con: Fewer plugins
Key features
PaintTool SAI
Lightweight painting software for digital artists with amazing anti-aliased drawings.
The pricing for PaintTool SAI is exceptionally fair and generous, offering a one-time purchase of $37 for a permanent software license.
Watch out
No cloud storage or collaboration features
Strengths
- Pro: Lightweight and performs well on older systems
- Pro: Excellent line art and anti-aliasing capabilities
- Pro: User-friendly and easy to learn interface
- Pro: Stable operation with data protection features
Weaknesses
- Con: Limited feature set compared to more comprehensive art software
- Con: Does not support high DPI monitors well (requires resolution change)
- Con: Specific compatibility issues with certain N-trig pen tablets
Key features
Plans and prices: Affinity Photo vs PaintTool SAI
| Tool | Plans and prices | Source |
|---|---|---|
| Affinity Photo |
| affinity.studio/photo-editing-software read Oct 31, 2026 |
| PaintTool SAI |
| systemax.jp/en/sai read Oct 19, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Affinity Photo pricing and PaintTool SAI pricing.
Key Takeaways
Affinity Photo
- Has a free plan
PaintTool SAI
- Choose if you want lightweight painting software for digital artists with amazing anti-aliased drawings
What the data shows
On the data below, Affinity Photo leads on a free plan. We do not name an overall winner for this pair.
- User ratings are within 0.2 points (4.6/5 from 333 reviews for Affinity Photo, 4.4/5 from 72 reviews for PaintTool SAI).
- PaintTool SAI sells one-time packs from $37 (no subscription).
- Only Affinity Photo has a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
What Users Say
Affinity Photo Reviews
I've been using Affinity Photo since it started some years ago.
The fact that it is free, and it does everything I want it to.
Frequently Asked Questions
How do Affinity Photo and PaintTool SAI compare in 2026?
On the data below, Affinity Photo leads on a free plan. We do not name an overall winner for this pair. User ratings are within 0.2 points (4.6/5 from 333 reviews for Affinity Photo, 4.4/5 from 72 reviews for PaintTool SAI). PaintTool SAI sells one-time packs from $37 (no subscription). Only Affinity Photo has a free plan.
What are Affinity Photo and PaintTool SAI used for?
Affinity Photo: Pro photo editing without the subscription. PaintTool SAI: Lightweight painting software for digital artists with amazing anti-aliased drawings.
What does Affinity Photo cost vs PaintTool SAI?
Affinity Photo is free. PaintTool SAI sells one-time packs from $37 (no subscription). Prices read on the vendors' pricing pages, latest check Oct 31, 2026.
What's the main difference between Affinity Photo and PaintTool SAI?
Affinity Photo's main strength: one-time purchase. PaintTool SAI's main strength: lightweight and performs well on older systems.