Sequoia vs OpenCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sequoia
This app offers a personal and visual experience for tree planting. Grow and care for your own sequoia, build a digital forest, and track your ecological impact. It connects your digital tree to a real-world reforestation effort.
- Grow and care for a personal sequoia
- Build a digital forest
- Track ecological progress
- Follow tree growth stages
- Explore eco-metrics
- Share progress with others
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Sequoia is an interactive eco companion that turns tree planting into a calm, visual and personal experience. Grow your own sequoia, care for it over time, build your personal forest and follow your ecological progress in one simple app. Sequoia is built around a clear idea: a tree should feel personal. You do not just see a number on a screen — you grow a living symbol of your contribution to nature. Your sequoia is connected to a real tree planted in a nursery, becoming part of real-world reforestation and the restoration of green spaces. With Sequoia, you can receive a personal certificate for your tree with detailed information about its growth and environmental impact, including its age, height, water consumption, CO₂ absorbed so far, and estimated CO₂ absorption per year. With Sequoia, you can: - Grow and care for your own sequoia - Build a personal digital forest - Track your ecological progress - Follow tree growth stages and milestones - Explore impact through simple eco-metrics - Personalize your forest experience - Share your progress with others - Take part in a nature-first community Sequoia is designed for people who want environmental action to feel simple, beautiful and meaningful. No complicated tools. No noise. Just your tree, your forest and a direct connection to nature. Start with one tree. Grow your forest. Help restore the planet with Sequoia.
OpenCat
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Think Less. Purr More. OpenCat is a soft and calming virtual pet designed to bring warmth to your day. Adopt your own gentle cat and keep it by your side wherever you go. It’s cute, affectionate, and always happy to see you. INTERACT & BOND Tap, pet, and play with your cat. Watch it respond with charming movements and sweet reactions. FEED & CARE Give your cat treats and take care of it daily. Small moments of interaction help strengthen your bond. A CALMING PRESENCE OpenCat isn’t loud or overwhelming. It’s designed to be simple, soothing, and easy to enjoy — a tiny companion that makes your day a little softer. Whether you need a small smile or a quiet presence, your cat is always there. Think less. Purr more.
Screenshots
Verdict
The clearest difference is iOS requirement: OpenCat at 14.0 against Sequoia's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sequoia ships an update every 5 days, OpenCat every 6 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.
| Parameter | Sequoia | OpenCat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.4 | 14.0 — better |
| Further details — not scored | ||
| Size | 122 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrei Onishchenko | Shuai Yuan |
In-app purchases
Sequoia
No in-app purchases
OpenCat
No in-app purchases









