This is much better than nothing, but it is far from a daily intake comparable to that of the populations who live in places with access to cheap sea fish, where such fish are a significant fraction of their food (e.g. Japan).
If your target is to match the diet of such populations, that means e.g. 5 mL per day of non-diluted "algal" oil, i.e. a teaspoon of such oil (or 10 mL of fish oil), which contains around 2 grams of long-chain omega-3 fatty acids.
That would be much more expensive when using "algal" oil, at least judging after the prices seen e.g. on Amazon.
In order to not scare the customers, many sources of "algal" oil have a similar price with fish oil, but only because they contain much less omega-3 fatty acids per capsule. If you read the fine print, then you discover the true price ratio.
Thus the price of equivalent fish oil is about 25 cents, a ratio of more than 2.6.
If you add to your price sales tax and shipping, it is likely that you arrive to the 3 times higher price that I have mentioned.
Because in most days I eat only food that I cook myself from raw ingredients, which is significantly cheaper than industrially-produced food, I can eat very healthy and tasty food for about $5 per day (in Europe).
The food includes the equivalent in fish oil of 4 of your gummies, which might cost around $1.50 with taxes and shipping.
Paying 30% of the daily budget for food only for a supplement taken in a quantity negligible in comparison with the other food, does not seem right.
The reports that I have seen about fish oil have found negligible contamination in comparison with the fish from which it had been extracted. Obviously oil extracted from cultured Schizochytrium would be strongly preferable, if only its price would drop to not much more than fish oil. If it were e.g. +50% or even +80% more expensive than fish oil, instead of being triple, I would immediately switch to it.
In Europe, some vegetables and fruits are expensive, but those are not needed in so great quantities as to make a large fraction of the food budget. Staple food, like maize, wheat, lentils, beans, sunflower, proteins from whey or milk, chicken meat, gelatin etc. is cheap.