Stackby vs ZeroBounce
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stackby
This app provides a flexible database platform to organize any type of information, from customer leads to project tasks and marketing campaigns. It allows real-time creation, management, and collaboration on databases from any mobile device, offering over 300 pre-built templates for quick setup.
- Organize information
- Manage tasks and projects
- Manage marketing campaigns
- Real-time collaboration
- 300+ pre-built templates
- Cross-platform accessibility
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Stackby is a flexible, easy to use database platform for you to organize anything. From agencies to freelancers to content creators to SMBs, over 3500 teams use Stackby to plan, manage and automate their work, their way. With Stackby on iOS, you can now get the power of Stackby right on your fingertips. All your databases in the web, are now automatically accessible on mobile. Now you can create, manage and collaborate with your teams, from anywhere you are - all in real-time. Some of the use-cases of Stackby today - --> Organizing information - - Leads & Customers - Sales CRM - Personal CRM - Recruitment CRM - Business Development - Applicant Tracking - Volunteer Management - Product - Bugs, Issues, Launches & Roadmap - Media lists --> Manage tasks and projects - - Task Planning - Client based Project Planning - Goal Tracking - OKR Tracker - Project Portfolio Management - Project Resource Management - Simple Project Tracker --> Manage your Marketing campaigns - Campaign Management - Social Media Calendar - Content Planning - Content Calendar - Video Production Management - Blog Editorial - PR Management - SEO Tracking - On-page, Off-page, SEO Audit - Ad Campaign Management - Reporting Analytics - Google Analytics, Search Console Choose from one of the 300+ pre-built templates across categories, and get started in less than 2 minutes. Download it on your mobile and tablets and seamlessly work across different platforms - web, desktop, mobile and tablet or iPad. Make way for endless possibilities.
ZeroBounce
This service offers a fast and secure way to validate email addresses, ensuring your messages reach their intended recipients. It helps improve open rates and ROI with high accuracy, AI-driven scoring, and deliverability tools.
- Email list validation
- Real-time bulk checking
- AI-driven email scoring
- Deliverability tools
- Blacklist alerts
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Accurate, fast and secure email validation service - We help you land them in the inbox and connect with your customers. Drive up your open rates and ROI with our 99% accurate email validation, A.I.-driven email scoring, and powerful deliverability tools Will this email bounce? Check your list – in bulk and in real time Is that email address active? Use our A.I. email scoring system to find out Is your email in perfect shape? Test it before you send Am I on any blacklists? Get alerts about your domain and IP
Screenshots
Verdict
The clearest difference is rating: ZeroBounce at 5.0 against Stackby's 4.3. ZeroBounce also leads on review sentiment (100% vs 74%) and update cadence (every 9 days vs every 6 weeks). Stackby's advantage is in-app purchases (none vs 7) and ratings volume (42 vs 3). On price, ads 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. ZeroBounce sells 7 one-off in-app purchases. Stackby asks for nothing beyond the download.
ZeroBounce holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Stackby has 42 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 74% of Stackby's written reviews are positive against 100% of ZeroBounce's.
Stackby ships an update every 6 weeks, ZeroBounce every 9 days. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.
| Parameter | Stackby | ZeroBounce |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (42 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 73.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 42 — better | 3 |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 39 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Relytree Technologies Pvt. Ltd | ZeroBounce |
Customer experience
Stackby
ZeroBounce
In-app purchases
Stackby
No in-app purchases
ZeroBounce
- 2000 credits$39.00
- 5000 credits$69.00
- 10000 credits$129.00
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- 25000 credits$274.99
- 50000 credits$499.00
- 100000 credits$649.00
- 250000 credits$1000.00
