DoublePi vs Nucleus Core (NU)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoublePi
Connect with others to share pre-owned items and showcase eco-friendly DIY projects. Engage in contests and discover ideas for sustainable living within a secure community focused on building a more circular society.
- Share used/unused goods
- Showcase eco-friendly DIY projects
- Engage in DIY contests
- Discover earth-friendly lifestyle ideas
- Connect with a like-minded community
- Secure sharing space
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2π is the true constant of a circle and the inspiration for creating the DoublePi community where our core mission is to help build a more circular society. DoublePi creates an easy and secure space where users can connect and share free, used/unused goods. Users showcase eco-friendly DYI projects and engage in contests based on those projects. (2PI)Feed features ideas about living the earth-friendly DoublePi lifestyle.
Nucleus Core (NU)
Earn NU points by engaging with the app daily and learning about blockchain. Manage your NU balance and securely store digital assets. It's a fair and eco-friendly way to participate.
- Earn NU points daily
- Learn blockchain principles
- Manage NU balance
- Securely store digital assets
- Eco-friendly participation
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Nucleus Core (NU) app lets users manage and grow their NU balance while securely storing your digital assets. It’s fair, eco-friendly. How does it work: Users can log in daily to engage with the app, learn about blockchain principles, and earn NU points as a reflection of their activity within the system. All values displayed within the app represent virtual balances based on user participation and learning progress. They are stored locally and synced securely with our servers for user convenience.
Screenshots
Verdict
The clearest difference is rating: DoublePi at 5.0 against Nucleus Core (NU)'s 3.0. DoublePi also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). Nucleus Core (NU)'s advantage is in-app purchases (none vs 7). On price, ratings volume and device support 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. DoublePi sells 7 one-off in-app purchases. Nucleus Core (NU) asks for nothing beyond the download.
DoublePi holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
DoublePi ships an update every 3 weeks, Nucleus Core (NU) every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | DoublePi | Nucleus Core (NU) |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 82 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Sixtwentyeight & Change LLC | Nucleus Core Ltd |
Customer experience
DoublePi
Nucleus Core (NU)
In-app purchases
DoublePi
- Purchase Double Pie$0.99
- Purchase 50 Pi Coins$4.99
- Purchase Mojo Pie$4.99
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- Purchase 100 Pi Coins$9.99
- Purchase 250 Pi Coins$24.99
- Purchase 500 Pi Coins$49.99
- Purchase 1000 Pi Coins$99.99
Nucleus Core (NU)
No in-app purchases
