What is Iris and what are its limitations?
Iris, made by iristech.co, is a cross-platform utility for Windows, Mac, and Linux that reduces blue light, filters screen flicker, and controls brightness without relying on your display's PWM dimming. It goes further than a basic colour temperature slider, adding presets for sleep, reading, and movie watching, plus per-app exclusions for colour-sensitive work.
Pricing is where Iris gets complicated. A consumer "lifelong" licence for Iris Pro runs around $14.99, but the same brand also lists business packages priced from hundreds of dollars up to enterprise tiers, plus a separate recurring subscription. That structure has drawn criticism: Trustpilot reviews of iristech.co cite refund delays and disputed "lifetime" licence claims, including customers billed a recurring fee after already buying what they understood to be a permanent licence.
On Mac, the app has not had a major update since 2022 and lags behind the Windows build, according to outliyr's 2026 IrisTech review. More importantly, Iris does not do any of the following:
- No dark mode scheduling - Iris adjusts colour and brightness, but it does not switch your Mac between light and dark mode on any schedule
- No wallpaper syncing - there is no way to pair different wallpapers to light and dark appearance
- No weather-aware switching - Iris has no concept of real-time weather conditions
- Confusing, tiered pricing - consumer, subscription, and business pricing sit side by side, which has led to billing disputes
- Slower Mac development - the Mac build trails the Windows version in updates and polish
Iris is a capable blue light tool for what it does. But if you want your Mac's appearance to manage itself, colour warmth is only one piece of that picture.
What are the best Iris alternatives for Mac?
Five apps cover the ground Iris leaves open, each with a different focus.
1. Solace - $4.99 (recommended)
Solace is a macOS menu bar app that automates appearance, warmth, and wallpaper together. It schedules dark mode by solar position, custom times, or live weather, reduces evening colour temperature using native macOS APIs, and pairs wallpapers to light and dark mode. It costs $4.99 once, with no subscription and zero data collection. See how Solace compares to f.lux for a detailed breakdown of the warmth engine.
2. f.lux - free
f.lux adjusts colour temperature from daylight down to a deep amber, with separate settings for daytime, sunset, and bedtime. It is free, cross-platform, and has been doing colour temperature since 2009, but it does not toggle dark mode, sync wallpapers, or react to weather. For more on how it stacks up, see the full list of f.lux alternatives.
3. Night Shift - free (built-in)
Night Shift ships with every modern Mac and warms your display automatically at sunset, with an adjustable strength slider. It costs nothing and requires no installation, but its warmth range is narrower than Iris or f.lux, and it has no dark mode scheduling, wallpaper features, or weather awareness of its own.
4. Nightfall - free (open source)
Nightfall is a lightweight, open-source dark mode toggler for Mac. It handles basic light/dark switching on a simple schedule but has no colour temperature control at all, so it solves a different half of the problem than Iris does.
5. Umbra - paid
Umbra focuses on syncing wallpapers to your Mac's dark and light mode, with a keyboard shortcut for quick switching. It is a paid app but does not include colour temperature adjustment, weather-aware switching, or Iris-style flicker reduction.
How do Iris alternatives compare?
The table below focuses on the four apps most directly comparable across appearance and warmth features. Iris leads on colour and flicker control; Solace is the only one that also schedules dark mode, syncs wallpapers, and reacts to weather.
| Feature | Iris | f.lux | Nightfall | Solace |
|---|---|---|---|---|
| Colour temperature / warmth | ✓ | ✓ | ✕ | ✓ |
| Dark mode scheduling | ✕ | ✕ | Basic | ✓ |
| Wallpaper syncing | ✕ | ✕ | ✕ | ✓ |
| Weather-aware switching | ✕ | ✕ | ✕ | ✓ |
| Subscription vs one-time | Tiered + subscription | Free | Free | One-time |
| Data collection | Unclear (closed source) | Geolocation + usage | None (open source) | None |
| Price | From $14.99, tiers vary | Free | Free | $4.99 one-time |
Which Iris alternative is right for you?
Choose Iris if flicker reduction and precise brightness curves matter more to you than dark mode automation, and you are comfortable navigating its tiered pricing. It remains a genuinely capable blue light tool on that narrow front.
Choose f.lux or Night Shift if you only want colour warmth at sunset and are happy to manage dark mode separately, or not at all. Both are free and require no licence to track.
Choose Nightfall if you specifically want a free, open-source dark mode toggle and already have colour warmth covered elsewhere.
Choose Umbra if wallpaper syncing to light and dark mode is your main interest and you do not need colour temperature control at all.
Choose Solace if you want dark mode scheduling, evening warmth, wallpaper syncing, and weather-aware switching in one place, for a one-time $4.99 with no subscription to track and no data collected.
For more free and paid options, see Best Blue Light Filter Apps for Mac in 2026.
Prefer to avoid subscriptions entirely? See Best One-Time-Purchase Mac Apps for Display Health.
Frequently asked questions
Is Iris worth the subscription?
It depends on how much you value flicker reduction and fine-grained brightness control. Iris offers a wider feature set than free tools like Night Shift, but its pricing is tiered and confusing, ranging from a low-cost consumer licence up to business tiers costing hundreds of dollars, plus a separate subscription option. If you only want blue light and colour temperature control, a free tool covers most of that ground for $0.
Does Iris work on M-series Macs?
Iris runs on Apple Silicon, but the Mac build has not received a major update since 2022, and users have reported it lagging behind the more actively maintained Windows version. It is not built natively around Apple's Night Shift or CoreBrightness frameworks the way some newer Mac-native tools are, so behaviour on recent macOS versions can be less consistent than on Windows.
What's the biggest complaint about Iris?
Pricing confusion and licensing disputes come up most often in independent reviews. Trustpilot reviews of iristech.co cite refund delays and disputed lifetime-licence claims, including customers charged a recurring subscription fee despite already owning a lifetime licence. The company does offer refunds, but reviewers describe the process as slow to initiate.
Is there a free alternative to Iris?
Yes. f.lux is a free, cross-platform colour temperature tool that covers most of what casual Iris users need, and Night Shift is built into every modern Mac at no cost. Neither matches Iris's flicker reduction or fine brightness controls, but both handle blue light filtering without any payment or licence to manage.
Does Solace do everything Iris does?
Not exactly; the two apps solve different problems. Solace covers evening colour warmth alongside dark mode scheduling, wallpaper syncing, and weather-aware switching, but it does not include Iris's flicker reduction or granular brightness curve tools. If blue light and appearance automation are your main concern, Solace covers that combination for a one-time $4.99. If you specifically need Iris's flicker and brightness engineering, Iris remains the more specialised tool.
Solace - $4.99, yours forever
Automate your Mac's appearance with custom scheduling, weather-aware switching, and colour temperature control. One-time purchase, zero data collection.
One-time purchase. No subscription.