Annotated Constitution vs Backstamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Annotated Constitution
Access the full text of the US Constitution with in-depth analysis, historical context, and biographies of its framers. Quickly find information on any constitutional topic with a powerful search feature.
- Full text of Constitution Annotated
- Records of the Federal Convention of 1787
- The Federalist Papers
- Biographies of framers
- Search functionality
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Explore the United States Constitution with Annotated Constitution. Whether you're a student, scholar, or history enthusiast, the app provides a comprehensive resource for understanding the foundations of American governance. - Full text of "The Constitution of the United States of America: Analysis and Interpretation" (Constitution Annotated), offering in-depth explanations, interpretations, and historical background of every clause. - Complete access to "The Records of the Federal Convention of 1787", which provides insights into the debates and decisions that shaped the Constitution. - The Federalist Papers, providing essential insights into the thoughts and arguments of the Constitution's framers. - Detailed biographies of the framers of the Constitution. - Search feature to find information on any topic related to the Constitution quickly. Disclaimer: This app is not affiliated, associated, endorsed by, or in any way officially connected with any government entity or organization.
Backstamp
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Photograph the mark on the bottom. Backstamp reads what that mark means: solid or plated, genuine standard or reproduction, 1890s or 1970s — and the typical sold range for pieces carrying it. It isn't a list you search. Backstamp reads the mark you're holding, then shows you the exact characters it matched on — so you can check its work. THE TRAPS IT CATCHES Most people misread the same marks: • "1847 Rogers Bros" — a founding year, not a date, and the piece is silverplate • EPNS, Alpaca, nickel silver — no solid silver in any of them • "22 KT GOLD" on china — that's paint, not bullion • "WedgEwood" with an extra E — not the real firm WHAT'S FREE Everything: three decodes a day, with no account — plus the full marks library, the field guide and the British date-letter tool, permanently unlocked. WHAT YOU GET • A verdict in seconds, with the characters it matched on • Purity standards, assay symbols, self-dating country marks, and the makers that matter • A date-letter tool that turns one British hallmark letter into its candidate years • A ledger of every find, with what you paid beside what the mark suggests • Typing a mark works offline — library, guide and decoder live on your phone. Photo scanning needs a connection. Backstamp is a research aid, not an appraisal. Estimates reflect typical sold prices for pieces in good condition — condition, pattern and size move them. Backstamp shows you the range and the evidence behind it, in seconds, on the mark in your hand.
Screenshots
Verdict
Annotated Constitution and Backstamp are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Annotated Constitution | Backstamp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | — |
| Number of ratings | 6 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Sukolsak Sakshuwong | Andris Zimelis |
In-app purchases
Annotated Constitution
No in-app purchases
Backstamp
No in-app purchases






